CN213092844U

CN213092844U - Flexible high-conductivity coaxial weak-current cable

Info

Publication number: CN213092844U
Application number: CN202022583635.2U
Authority: CN
Inventors: 张林锐; 程斌; 华健; 华洪彬
Original assignee: Wuxi Huamei Cable Co ltd
Current assignee: Wuxi Huamei Cable Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-04-30
Anticipated expiration: 2030-11-10

Abstract

The utility model relates to the technical field of cables, in particular to a flexible high-conductivity coaxial weak current cable, which comprises an outer sheath, a shielding layer and a weak current conductor unit, wherein a glass fiber braided layer is fixedly arranged on the inner wall of the outer sheath, a polyester tape wrapping layer is fixedly arranged on the inner wall of the glass fiber braided layer, the shielding layer is fixedly arranged on the inner wall of the polyester tape wrapping layer, and an insulating fireproof layer is arranged between the shielding layer and the weak current conductor unit; the weak current conductor unit comprises an aluminum alloy core and a flexible conductive winding layer positioned on the outer wall of the aluminum alloy core; the utility model discloses a mode that the aluminium alloy core set up the compound weaving layer around the layer, the weaving layer of copper wire and aramid fiber silk can realize good flexibility, and the copper wire is pasted simultaneously and can be increased the holistic diameter of conductor at the skin of aluminium alloy core, has improved the electric conductivity promptly, and the cable is arranged easily on the profile of climbing the thing, does not need the instrument to be crooked construction, and convenient wiring both realizes high electric conductivity, by the flexibility that has the preferred simultaneously.

Description

Flexible high-conductivity coaxial weak-current cable

Technical Field

The utility model relates to the technical field of cables, particularly relate to flexible high electrically conductive coaxial light current cable.

Background

Coaxial cable refers to a cable having two concentric conductors, the conductors and shield sharing the same axis. Most common coaxial cables consist of a copper conductor separated by an insulating material, outside of which is another layer of annular conductor and its insulation, and then the entire cable is surrounded by a sheath of polyvinyl chloride or teflon material.

Since the concentric cable is commonly used as a signal line, it is often laid in offices, factories, etc. for the sake of good wiring, the cable is generally bent to follow the contour of a wall, equipment, or a climbing object, or is applied between two moving objects to be connected, and the cable is often curled or changed in stress, so that the cable is required to have good flexibility and not easy to break.

Prior art documents:

patent document 1: CN208507237U flexible coaxial cable

Patent document 2: CN202564522U flexible coaxial cable

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flexible high electrically conductive coaxial weak current cable can provide the high electrically conductive while, has better flexibility and fatigue resistance ability, and the profile along with the climbing attachment that can relax is crooked, realizes easily arranging the cable to fine fatigue strength has.

Based on the realization of above-mentioned purpose, the utility model provides a flexible high electrically conductive coaxial weak current cable, include:

a weak current conductor unit;

the insulating fireproof layer is arranged on the outer wall of the weak current conductor unit;

the shielding layer is arranged on the outer wall of the insulating fireproof layer;

the polyester tape winding layer is wound on the outer wall of the shielding layer;

the glass fiber braided layer is coated on the outer wall of the polyester tape winding layer;

the outer sheath is sleeved on the outer wall of the glass fiber braided layer;

the weak current conductor unit comprises an aluminum alloy core and a flexible conductive winding layer positioned on the outer wall of the aluminum alloy core;

the flexible conductive winding layer is formed by interweaving copper wires/nickel-plated copper wires and aramid fibers with the same diameter;

the weight percentage of the copper wires is 85-95%, the weight percentage of the aramid fibers is 5-15%, and the pitch is 5 times.

Preferably, the flexible conductive winding layer has a weaving angle of 35-45 ° with respect to the cable axis.

Preferably, the thickness of the flexible conductive winding layer is 0.3-0.5 mm.

Preferably, the diameter of the aluminum alloy core is 0.5 mm.

Preferably, the thickness of the outer sheath, the glass fiber braided layer, the shielding layer, the polyester tape winding layer and the weak current conductor unit is 0.5-0.8 mm.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of the flexible high-conductivity coaxial weak current cable of the present invention;

fig. 2 is the flexible conductive winding layer structure diagram of the flexible high-conductivity coaxial weak current cable of the present invention.

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be understood that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways with any flexible highly conductive coaxial low current cable, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

The utility model discloses aim at realizing the flexibility that improves the cable, especially the flexibility of conductive core, because traditional wire diameter is big, lead to the bending property to descend, do not set up and can not bend at will to can break off or damage under the condition that frequently curls, consequently, the utility model discloses a 1 mode of setting up the compound weaving layer around the layer of aluminum alloy core had both realized high electric conductivity, by the flexibility that has the preferred simultaneously.

As shown in fig. 1 and fig. 2, the present embodiment provides a flexible high-conductivity coaxial weak current cable, including: a weak current conductor unit; the insulating fireproof layer 3 is arranged on the outer wall of the weak current conductor unit; the shielding layer 4 is arranged on the outer wall of the insulating fireproof layer 3; the polyester tape winding layer 5 is wound on the outer wall of the shielding layer 4; a glass fiber woven layer 6; the outer wall of the polyester tape winding layer 5 is coated; an outer sheath 7; the outer wall of the glass fiber braided layer 6 is sleeved with the glass fiber braided layer; the weak current conductor unit comprises an aluminum alloy core 1 and a flexible conductive winding layer 2 positioned on the outer wall of the aluminum alloy core 1.

In this embodiment, the outer sheath 7 is a PVE sheath, the thickness of the outer sheath 7 is 0.8mm, the polyester tape is wound around the outer wall of the shielding layer 4, the thickness of the polyester tape around the covering layer 5 is 0.5mm, the shielding layer 4 is a metal braid layer, the thickness of the metal braid layer is 0.5mm, the insulating and fireproof layer 3 is a flexible insulating and fireproof layer, the flame-retardant silica gel material is adopted, and the thicknesses of the glass fiber braid layer 6 and the insulating and fireproof layer 3 are 0.5-0.6 mm.

Further, the weak current conductor unit comprises an aluminum alloy core 1 and a flexible conductive winding layer 2 positioned on the outer wall of the aluminum alloy core 1.

In the embodiment, the flexible conductive winding layer 2 is formed by interweaving copper wires/nickel-plated copper wires and aramid fibers with the same diameter, the thickness of the flexible conductive winding layer 2 is 0.3-0.5mm, and the diameter of the aluminum alloy core 1 is 0.5 mm.

So, good flexibility can be realized to the weaving layer of copper wire and aramid fiber silk, and the copper wire pastes the holistic diameter of conductor that can increase at aluminum alloy core 7's skin simultaneously, has improved the electric conductivity promptly, and the aluminum alloy is higher than copper pliability 30%, and the bounce is lower than copper 40%, and aluminum alloy core 1's flexibility is good, and the bounce is low, therefore the cable is arranged easily on the profile of climbing the thing, does not need the instrument promptly flexible to coil, and convenient wiring also has good tired curling ability of nai.

Furthermore, in order to improve the conductivity, the mass ratio of the copper wires is 85-95%, the mass ratio of the aramid fibers is 5-15%, and the interweaving pitch multiple is 5 times.

Referring to fig. 2, the flexible conductive winding layer 2 has a weaving angle of 35-45 ° with respect to the axis of the cable.

In combination with the above embodiment, the utility model discloses a 1 mode of setting up compound weaving layer around the layer of aluminum alloy core, the weaving layer of copper wire and aramid fiber silk can realize good flexibility, and the copper wire pastes the holistic diameter of conductor that can increase at 1 skin of aluminum alloy core simultaneously, has improved the conductivity promptly, and the cable is arranged easily on the profile of climbing the thing, does not need the instrument promptly flexible to coil, and convenient wiring had both realized high conductivity, had the flexibility of preferred simultaneously.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims

1. Flexible high electrically conductive coaxial weak current cable, its characterized in that includes:

a weak current conductor unit;

an outer sheath sleeved on the outer wall of the glass fiber braided layer

the flexible conductive winding layer is formed by interweaving copper wires/nickel-plated copper wires and aramid fibers with the same diameter

2. The flexible high-conductivity coaxial weak-current cable according to claim 1, wherein the braiding angle of the flexible conductive winding layer is 35-45 ° with respect to the cable axis.

3. The flexible high-conductivity coaxial weak current cable according to claim 1, wherein the thickness of the flexible conductive winding layer is 0.3-0.5 mm.

4. The flexible high conductivity coaxial weak current cable according to claim 1, wherein the aluminum alloy core has a diameter of 0.5 mm.

5. The flexible high-conductivity coaxial weak current cable according to claim 1, wherein the thickness of the outer sheath, the glass fiber braid, the shielding layer, the polyester tape winding layer and the weak current conductor unit is 0.5-0.8 mm.