CN220526621U - Elastic recovery type extrusion-resistant shielded cable - Google Patents
Elastic recovery type extrusion-resistant shielded cable Download PDFInfo
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- CN220526621U CN220526621U CN202321865716.9U CN202321865716U CN220526621U CN 220526621 U CN220526621 U CN 220526621U CN 202321865716 U CN202321865716 U CN 202321865716U CN 220526621 U CN220526621 U CN 220526621U
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- core
- wire
- elastic recovery
- recovery type
- layer
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- 238000001125 extrusion Methods 0.000 title claims abstract description 27
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 229920001971 elastomer Polymers 0.000 claims abstract description 27
- 239000000806 elastomer Substances 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000009954 braiding Methods 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
- 239000004020 conductor Substances 0.000 claims description 24
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 239000011889 copper foil Substances 0.000 claims description 8
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000009940 knitting 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
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 238000012856 packing Methods 0.000 claims 2
- 239000010410 layer Substances 0.000 abstract description 46
- 238000005452 bending Methods 0.000 abstract description 10
- 239000011241 protective layer Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- FAIFRACTBXWXGY-JTTXIWGLSA-N COc1ccc2C[C@H]3N(C)CC[C@@]45[C@@H](Oc1c24)[C@@]1(OC)C=C[C@@]35C[C@@H]1[C@](C)(O)CCc1ccccc1 Chemical compound COc1ccc2C[C@H]3N(C)CC[C@@]45[C@@H](Oc1c24)[C@@]1(OC)C=C[C@@]35C[C@@H]1[C@](C)(O)CCc1ccccc1 FAIFRACTBXWXGY-JTTXIWGLSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy 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
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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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- Insulated Conductors (AREA)
Abstract
The utility model discloses an elastic recovery type extrusion-resistant shielding cable which comprises three power wire cores, a grounding wire core and two control wire cores, wherein the three power wire cores, the grounding wire core and the two control wire cores surround an oblong TPU elastomer filling core and are twisted together with a plurality of TPU elastomer filling core strips to form a cable core, and the cable core is sequentially coated with a crosslinked fluororubber elastomer inner sheath layer, a PET resin tape longitudinal wrapping protective layer, a metal wire mixed braiding shielding layer, a fluororubber wrapping moisture-proof layer and a PUR extrusion outer sheath layer. The cable has balanced and stable structure, better bending resistance, high elastic recovery capability, extrusion deformation resistance, difficult occurrence of wire breakage and core breakage, long service life and enhanced safety and reliability.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to an elastic recovery type extrusion-resistant shielded cable.
Background
The oil-resistant shielded cable can be applied to industrial and mining enterprises such as metallurgy, petroleum, chemical industry, power plants and the like, and can be used as connecting wires of various electric appliances, instruments and automatic devices under high-temperature conditions and severe environments such as acid, alkali and oil-water low-temperature conditions for controlling and monitoring the alternating current rated voltage of 450/750V or below, and the oil-resistant, corrosion-resistant, acid-base-resistant, ultraviolet-resistant and other performances are required. However, in the continuous working process of the automatic device, after the common shielded cable is subjected to repeated extrusion and bending, the cable core structure is easy to deform, the cable core cannot be elastically restored to the original state, the core breakage and the wire breakage are easy to occur, the service life is short, the frequency of maintenance point detection is high, and the potential safety hazard is caused.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide the elastic recovery type extrusion-resistant shielded cable which has balanced and stable structure, better bending resistance, high elastic recovery capacity, extrusion deformation resistance, long service life and enhanced safety and reliability.
The utility model solves the technical problems through the following technical proposal.
The utility model provides an extrusion-resistant shielded cable of elastic recovery formula, includes three power core, a ground connection sinle silk and two control sinle silk around oblong TPU elastomer filling core and with a plurality of TPU elastomer filling core strip strand jointly form the cable core, the control sinle silk external diameter is greater than power core external diameter with the ground connection wire external diameter, the outside cladding of cable core has crosslinked fluororubber elastomer inner sheath layer, PET resin area in proper order and indulges shielding layer, metal wire mixed-woven shielding layer, fluororubber around wrapping dampproof course and PUR extrusion-wrapping oversheath layer, crosslinked fluororubber elastomer inner sheath layer includes interior cylinder and outer cylinder, interior cylinder with be radial equipartition between the outer cylinder has a plurality of connecting plate bodies, PET resin area indulges the shielding layer and is PET resin area indulges the structure of wrapping, it has the copper foil layer to electroplate on the surface of PET resin area.
Preferably, the power wire core comprises a power wire core conductor and a butyronitrile polyvinyl chloride insulating layer.
Preferably, the power core conductor is formed by twisting a plurality of tinned copper monofilaments, and the wire diameter of each tinned copper monofilament is 0.09mm to 0.3mm.
Preferably, the ground wire core includes a ground wire core conductor and a PP insulating layer.
Preferably, the grounding wire core conductor is formed by twisting and compacting a plurality of soft copper wires with the wire diameters of 0.05mm to 0.2mm to form a circular conductor structure.
Preferably, the control wire core comprises a wire core body formed by twisting two insulating wire cores, the outer part of the wire core body is coated with an ETFE outer insulating layer, and the insulating wire core comprises an inner conductor and an XLPE insulating layer.
Preferably, the inner conductor is formed by twisting a plurality of tinned copper monofilaments with diameters of 0.05mm to 0.08 mm.
Preferably, the thickness of the metal wire mixed-knitting shielding layer is not less than 0.3mm.
Preferably, the copper foil layer has a thickness of 15 μm to 45 μm.
Preferably, the metal wire mixed-braiding shielding layer is formed by reversely spirally winding and braiding a plurality of tinned copper wires and a plurality of aluminum-magnesium wires, and the wire diameter of the tinned copper wires is smaller than that of the aluminum-magnesium wires.
The beneficial effects of the utility model are as follows:
1. the long round TPU elastomer filling core is added at the center of the cable core, the TPU elastomer filling core still has good physical and mechanical properties even if the TPU elastomer filling core is subjected to external force under the low-temperature state, the TPU elastomer filling core has good flexibility, can slow down the lateral pressure and extrusion force when each wire core is subjected to bending, has excellent extrusion resistance, is beneficial to ensuring the balanced stability of the cable core structure, has high elasticity and high mechanical strength, is beneficial to quickly recovering to the original state after the cable is subjected to bending, and reduces the stress concentration of each wire core together with the TPU elastomer filling core strip, reduces the occurrence of wire breakage and broken core of each wire core, enhances the mechanical strength, greatly improves the safety reliability of the cable, and prolongs the service life of the cable.
2. The inner sheath layer outside the cable core adopts the cross-linked fluororubber elastomer with a cylindrical structure, so that the lateral pressure during bending is borne, the flexibility and bending resistance of the cable are improved, the cable is quickly and elastically restored to the original state after being subjected to bending, the stability of the cable core structure is ensured, the occurrence of core breakage and wire breakage is prevented, the stability and the electrical performance reliability of the cable work are maintained, and the cable is durable to use.
In the PET resin tape longitudinally-wrapped protective layer, the PET resin tape and the copper foil layer form an integrated structure, when the cable is subjected to bending, corresponding sliding friction is generated between the protective layer and the crosslinked fluororubber elastomer inner sheath layer, so that the copper foil layer is effectively prevented from cracking, the bending resistance of the cable is improved, the electrical characteristics of the cable are ensured, the double-layer shielding structure is formed by the PET resin tape and the metal wire mixed-woven shielding layer, the stability of the shielding effect is ensured, the service life is prolonged, and the durability is better.
And 4, the PUR extrusion outer sheath layer is more flexible and firm, excellent in oil resistance, better in wear resistance, long in service life and better in durability and usability under the working condition environment with severe low temperature.
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 cable comprises a 1-power cable core, a 2-grounding cable core, a 3-control cable core, a 4-oblong TPU elastomer filling core, a 5-TPU elastomer filling core strip, a 6-crosslinked fluororubber elastomer inner sheath layer, a 7-PET resin tape longitudinal wrapping protective layer, an 8-metal wire mixed-knitting shielding layer, a 9-fluororubber wrapping moisture-proof layer, a 10-PUR extrusion outer sheath layer, a 11-power cable conductor, a 12-butyronitrile polyvinyl chloride insulating layer, a 13-grounding cable core conductor, a 14-PP insulating layer, a 15-insulating cable core, a 16-ETFE outer insulating layer, a 17-inner conductor and a 18-XLPE insulating layer.
Description of the embodiments
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, an elastic recovery type extrusion-resistant shielding cable of the embodiment of the utility model comprises three power wire cores 1, a grounding wire core 2 and two control wire cores 3, wherein the three power wire cores 1, the one grounding wire core 2 and the two control wire cores 3 surround an oblong TPU elastomer filling core 4 and are twisted together with a plurality of TPU elastomer filling core strips 5 to form a cable core, the outer diameter of each control wire core 3 is larger than the outer diameters of the power wire cores 1 and the grounding wire cores 2, and in the embodiment of the utility model, the two control wire cores 3 are symmetrically arranged left and right by taking the long axis of the oblong TPU elastomer filling core 4 as the center, and the two power wire cores 1, the one grounding wire core 2 are respectively arranged at the front side and the rear side of the oblong TPU elastomer filling core 4 in the long axis direction. In one embodiment, the power core 1 includes a power core conductor 11 and a butyronitrile polyvinyl chloride insulating layer 12, specifically, the power core conductor 11 is formed by twisting a plurality of tin-plated copper monofilaments, and the diameter of each tin-plated copper monofilament is 0.09mm to 0.3mm. In one embodiment, the ground wire core 2 includes a ground wire core conductor 13 and a PP insulation layer 14, specifically, the ground wire core conductor 13 is formed by twisting and compacting a plurality of soft copper wires with a wire diameter of 0.05mm to 0.2mm to form a circular conductor structure. In one embodiment, the control wire core 3 includes two insulated wire cores 15 twisted in pairs to form a wire core body, the wire core body is externally coated with an ETFE outer insulation layer 16, and the insulated wire core 15 includes an inner conductor 17 and an XLPE insulation layer 18. Specifically, the inner conductor 17 is formed by twisting a plurality of tin-plated copper monofilaments with diameters of 0.05mm to 0.08 mm.
The cable core is sequentially coated with a crosslinked fluororubber elastomer inner sheath layer 6, a PET resin belt longitudinal wrapping protective layer 7, a metal wire mixed braiding shielding layer 8, a fluororubber wrapping moisture-proof layer 9 and a PUR extrusion outer sheath layer 10. The inner sheath layer 6 of the crosslinked fluororubber elastomer comprises an inner cylinder body and an outer cylinder body, a plurality of connecting plate bodies are radially and uniformly distributed between the inner cylinder body and the outer cylinder body, the PET resin belt longitudinal wrapping protective layer 7 is of a PET resin belt longitudinal wrapping structure, a copper foil layer is formed on the outer surface of the PET resin belt in an electroplating mode, and the thickness of the copper foil layer is 15-45 microns. In one embodiment, the metal wire mixed-knitting shielding layer 8 is formed by mutually and reversely spirally winding and knitting a plurality of tinned copper wires and a plurality of aluminum-magnesium wires, the wire diameter of the tinned copper wires is smaller than that of the aluminum-magnesium wires, and further, the thickness of the metal wire mixed-knitting shielding layer 8 is not smaller than 0.3mm.
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 (10)
1. Elastic recovery type extrusion-resistant shielded cable, characterized by: including three power core (1), a ground connection sinle silk (2) and two control sinle silk (3) around oblong TPU elastomer packing core (4) and with a plurality of TPU elastomer packing core strip (5) strand jointly and form the cable core, control sinle silk (3) external diameter is greater than power core (1) external diameter with ground connection sinle silk (2) external diameter, the outside cladding of cable core has crosslinked fluororubber elastomer inner sheath layer (6), PET resin area longitudinally wraps inoxidizing coating (7), metal wire mixed knitting shielding layer (8), fluororubber around wrapping dampproof course (9) and PUR extrusion outer sheath layer (10), crosslinked fluororubber elastomer inner sheath layer (6) include interior cylinder and outer cylinder, interior cylinder with be radial equipartition between the outer cylinder has a plurality of connecting plates, PET resin area longitudinally wraps inoxidizing coating (7) and is PET resin area longitudinally wraps the structure, it is formed with the copper foil layer to electroplate on the surface of PET resin area.
2. The elastic recovery type extrusion-resistant shielded cable according to claim 1, characterized in that: the power wire core (1) comprises a power wire core conductor (11) and a butyronitrile polyvinyl chloride insulating layer (12).
3. The elastic recovery type extrusion-resistant shielded cable according to claim 2, characterized in that: the power wire core conductor (11) is formed by twisting a plurality of tinned copper monofilaments, and the wire diameter of each tinned copper monofilament is 0.09mm to 0.3mm.
4. The elastic recovery type extrusion-resistant shielded cable according to claim 1, characterized in that: the grounding wire core (2) comprises a grounding wire core conductor (13) and a PP insulating layer (14).
5. The elastic recovery type extrusion-resistant shielded cable according to claim 4, wherein: the grounding wire core conductor (13) is formed by twisting and compacting a plurality of soft copper wires with the wire diameters of 0.05mm to 0.2mm to form a circular conductor structure.
6. The elastic recovery type extrusion-resistant shielded cable according to claim 1, characterized in that: the control wire core (3) comprises a wire core body formed by twisting two insulating wire cores (15), an ETFE outer insulating layer (16) is coated outside the wire core body, and the insulating wire cores (15) comprise an inner conductor (17) and an XLPE insulating layer (18).
7. The elastic recovery type extrusion-resistant shielded cable according to claim 6, characterized in that: the inner conductor (17) is formed by twisting a plurality of tinned copper monofilaments with diameters of 0.05mm to 0.08 mm.
8. The elastic recovery type extrusion-resistant shielded cable according to claim 1, characterized in that: the thickness of the metal wire mixed-woven shielding layer (8) is not smaller than 0.3mm.
9. The elastic recovery type extrusion-resistant shielded cable according to claim 1, characterized in that: the copper foil layer has a thickness of 15 μm to 45 μm.
10. The elastic recovery type extrusion-resistant shielded cable according to claim 1, characterized in that: the metal wire mixed-braiding shielding layer (8) is formed by reversely spirally winding and braiding a plurality of tinned copper wires and a plurality of aluminum-magnesium wires, and the wire diameter of the tinned copper wires is smaller than that of the aluminum-magnesium wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321865716.9U CN220526621U (en) | 2023-07-17 | 2023-07-17 | Elastic recovery type extrusion-resistant shielded cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321865716.9U CN220526621U (en) | 2023-07-17 | 2023-07-17 | Elastic recovery type extrusion-resistant shielded cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220526621U true CN220526621U (en) | 2024-02-23 |
Family
ID=89937470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321865716.9U Active CN220526621U (en) | 2023-07-17 | 2023-07-17 | Elastic recovery type extrusion-resistant shielded cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220526621U (en) |
-
2023
- 2023-07-17 CN CN202321865716.9U patent/CN220526621U/en active Active
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