CN210865667U

CN210865667U - High-flexibility light sensing cable

Info

Publication number: CN210865667U
Application number: CN201921891072.4U
Authority: CN
Inventors: 程斌; 张林锐; 余慧丽; 华健; 华洪彬
Original assignee: Wuxi Huamei Cable Co ltd
Current assignee: Wuxi Huamei Cable Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-06-26
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a high flexible light sensing cable, which relates to the cable field, wherein the cable core is formed by twisting a plurality of insulated wire cores, the insulated wire cores are composed of conductors, isolation belts and insulating layers extruded outside the isolation belts, and the conductors are composed of copper wires and aramid fibers; filling is arranged in the gap of the cable core, and two metal shielding layers are arranged outside the cable core; the metal shielding layer is formed by combining an aluminum foil shielding belt and a nano aluminum alloy wire braid layer. The utility model discloses have strong, tough, light-duty characteristic of high softness, when effectively guaranteeing signal stable transmission, also have excellent convenient to use and security and higher life, and only produce a small amount of low cigarette nontoxic gases when burning, belong to the environment-friendly cable.

Description

High-flexibility light sensing cable

Technical Field

The utility model relates to a cable field specifically indicates a high flexible light-duty sensing cable.

Background

The sensing technology is an important technical basis of the information society. With the new requirements of high-precision instruments and meters on various photoelectric sensing and sensing alarms, higher requirements are provided for the use characteristics of the matched sensing cable, the traditional matched sensing cable is usually of a copper conductor polyethylene insulation polyvinyl chloride sheath structure, so that the traditional cable has the defects of insufficient toughness, easiness in breaking and cracking, hardness, heaviness, inconvenience in installation, instable signal transmission and the like, and obviously cannot meet the requirements of some fields.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high flexibility light sensing cable aiming at the defects existing in the prior art, which is designed aiming at the structural material of the cable, and improves the flexibility, the obdurability and the portability of the cable; the utility model discloses a cable also has excellent convenient to use and security and higher life when effectively guaranteeing signal stable transmission.

The utility model discloses a realize like this:

a high flexible light sensing cable is characterized in that the sensing cable sequentially comprises a conductor, an isolation belt, an insulating layer, filling, an aluminum foil shielding belt and an aluminum alloy wire weaving layer from inside to outside; the conductor, the isolation belt and the insulating layer form an insulating wire core of the sensing cable, and the insulating wire core is of an integral structure formed by longitudinally wrapping the isolation belt at one time on the outer layer of the conductor and then extruding and wrapping the insulating layer on the isolation belt; the cable core of the sensing cable is formed by stranding a plurality of insulated wire cores; the conductor comprises copper wires and aramid fibers; the aluminum foil shielding belt and the aluminum alloy wire braided layer form a metal shielding layer; the aluminum alloy wires for weaving in the metal shielding layer are characterized in that carbon nano tubes of the aluminum alloy wires are smelted in an aluminum matrix and are uniformly dispersed and distributed.

Furthermore, the copper wires of the conductor are bundled by adopting a sixth plurality of copper wires, and the pitch diameter ratio is less than 16 when the wires are bundled; the aramid fiber wire is used as a tensile reinforcing element, and the aramid fiber wire is added in the copper wire bundling process.

Furthermore, a copper wire bundle structure with the diameter of 28 monofilaments being 0.145mm is adopted in the conductor.

Furthermore, the isolation belt adopts a PP isolation belt; the insulating layer adopts a polyethylene insulating layer.

Further, the thickness of the PP isolation belt is 0.015mm, and the Shore hardness of the polyethylene insulation layer outside the isolation belt is 43A.

Further, the thickness of the aluminum foil shielding tape is 0.03 mm; the aluminum alloy wire braided layer is a carbon nano tube modified aluminum alloy wire braided layer.

Further, the filling is flexible tearing net rope filling, and the flexible tearing net rope is filled in the gap of the insulating wire core.

The utility model discloses with prior art's beneficial effect lie in:

the design of the structure material of the utility model can ensure excellent comprehensive intensive effect, effectively ensure the highly stable transmission of signals, and simultaneously have excellent use convenience and safety and longer service life; compared with a large amount of halogen-containing toxic gas and dense smoke released during the combustion of the traditional cable, the product only generates a small amount of low-smoke non-toxic gas during the combustion, and belongs to an environment-friendly product.

Drawings

Fig. 1 is a schematic structural diagram of a highly flexible light sensing cable according to the present invention;

the cable comprises a conductor 1, an isolation belt 2, an insulation layer 3, a filling layer 4, an aluminum foil shielding belt 5 and a carbon nano tube modified aluminum alloy wire braided layer 6.

Detailed Description

In order to make the purpose, technical solution and effect of the present invention clearer and more clear, it is clear that the following list examples are to the present invention for further detailed description. It should be noted that the embodiments described herein are only for explaining the present invention and are not used to limit the present invention.

As shown in fig. 1, for the utility model discloses a light-duty sensing cable of high flexibility, the cable core form by many insulation core transposition, its insulation core comprises conductor 1, median 2 and crowded package insulating layer 3 outside median 2. The conductor 1 of the utility model is composed of copper wires and aramid fibers; filling 4 is arranged in the gap of the cable core and is a flexible tearing mesh rope, and a metal shielding layer is arranged outside the cable core; the metal shielding layer is formed by weaving an aluminum foil shielding belt 5 and a carbon nano tube modified aluminum alloy wire layer 6.

The utility model discloses a pitch diameter ratio is less than 16 when conductor 1 adopts many thin soft copper wire bundles of sixth kind to close and restrainting the silk, and considers that the conductor is except assuming cable self weight in the use, still need to undertake the exogenic action of removal in-process, so need additionally add many intensity of own and the high aramid fiber silk of compliance as tensile reinforcing element at the restraint silk in-process. When the cable conductor is normally used, the aramid fiber wire has a lower coefficient of elongation than the copper wire, so that the cable conductor can be ensured to bear mechanical tension mainly by the aramid fiber wire when being stretched by external force, and the copper wire is prevented from being stretched more and even being stretched finely and broken; moreover, because the aramid fiber filaments are very smooth and have extremely low friction coefficients, the aramid fiber filaments can further enable the copper wires to have similar lubricating effects in the plurality of thin soft copper wires, so that the aramid fiber filaments can better slide and have higher softness when the conductor is bent.

In addition, the degree of freedom of movement between copper wires and the insulation need to satisfy the requirement of easily peeling off when the insulation can reduce the bending deformation of the conductor stress in the cable use process if being embedded into the conductor, so that the isolation belt 2 needs to be adopted outside the conductor 1, and the flexibility of the conductor can be deteriorated in the wrapping type wrapping belt, the utility model discloses what the product adopted is a thin high temperature resistant PP isolation belt, and it can be simultaneously in the phase of extruding the low density polyethylene insulation with smaller specific gravity and electric performance by longitudinally wrapping on the conductor once only. That is, the insulated wire core is composed of a conductor, a PP isolation belt longitudinally wrapped outside the conductor and a soft low-density polyethylene insulation layer extruded outside the isolation belt. The conductor is composed of copper wires and aramid fibers, and the conductor is externally provided with an isolation belt and soft low-density polyethylene.

As best, the utility model discloses a conductor 1 preferentially adopts to have 28 monofilament diameters to be 0.145 mm's high conductivity thin copper wire bundle and closes the structure, and PP median thickness is 0.015mm, and the shore hardness of the soft low density polyethylene outside the median is 43A.

Furthermore, in terms of the design of the shielding layer, aluminum-based materials have significant advantages in some energy-saving or light-weight applications, considering that the specific gravity of the materials is significantly smaller compared to iron and copper materials, and the corrosion resistance is better due to the fact that a thin passivation film is formed on the aluminum surface to prevent the materials from being further oxidized. And the utility model discloses the product metallic shield layer weave by aluminium foil shielding area 5, the modified aluminum alloy silk of carbon nanotube and form, consider that carbon nanotube is one kind and convolute the diameter that forms by the graphite flake and only have nanometer level one-dimensional tubular product, what it is the big energy to hide in its small "health", with these "something small" blend in the aluminum alloy material, generally like the reinforcing bar in the concrete, enable the intensity of aluminum alloy and show the promotion, consequently the utility model discloses additionally also have excellent pliability and light characteristic when guaranteeing its shielding effect. Preferably, the aluminum foil shielding tape has a thickness of 0.03mm, and is woven with aluminum alloy wires in which carbon nanotubes are melted in an aluminum matrix and uniformly dispersed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The high-flexibility light sensing cable is characterized in that the sensing cable sequentially comprises a conductor (1), an isolation belt (2), an insulating layer (3), a filling (4), an aluminum foil shielding belt (5) and a carbon nano tube modified aluminum alloy wire braid layer (6) from inside to outside; the conductor (1), the isolation belt (2) and the insulating layer (3) form an insulating wire core of the sensing cable, the insulating wire core is of an integral structure formed by longitudinally wrapping the isolation belt (2) on the outer layer of the conductor (1) at one time and then extruding the insulating layer (3) outside the isolation belt (2); the cable core of the sensing cable is formed by stranding a plurality of insulated wire cores; the conductor (1) comprises copper wires and aramid fibers; the aluminum foil shielding belt (5) and the carbon nano tube modified aluminum alloy wire braid layer (6) form a metal shielding layer.

2. The high flexibility light sensing cable according to claim 1, characterized in that the copper wires of the conductor (1) are bundled by a sixth plurality of copper wires and the pitch ratio of the bundled wires is less than 16; the aramid fiber wire is used as a tensile reinforcing element, and the aramid fiber wire is added in the copper wire bundling process.

3. A highly flexible and lightweight sensing cable as claimed in claim 1, wherein said conductor (1) is a copper wire bundle structure with 28 monofilaments having a diameter of 0.145 mm.

4. A highly flexible and lightweight sensing cable as claimed in claim 1, wherein said insulating tape (2) is PP insulating tape; the insulating layer (3) is a polyethylene insulating layer.

5. The highly flexible light sensor cable according to claim 4, wherein the thickness of the PP isolation tape is 0.015mm, and the Shore hardness of the polyethylene insulation layer outside the isolation tape is 43A.

6. A highly flexible light sensor cable according to claim 1, characterized in that the aluminum foil shielding tape (5) has a thickness of 0.03 mm.

7. A highly flexible lightweight sensing cable according to claim 1, wherein said filling (4) is a flexible ripcord filling, said flexible ripcord filling in the voids of the insulated wire core.