CN201191525Y - Copper coated aluminum uni-core flame-retardant flexible electric cable - Google Patents

Abstract

A copper-clad aluminum single-core flame-retardant flexible cable belongs to the technical field of electric wires and cables. It includes a conductive wire core and an insulating layer located outside the conductive wire core. The conductive wire core is formed by twisting conductive monofilaments. Each conductive monofilament is composed of an aluminum conductor and a copper cladding coated on the outside of the aluminum conductor. The diameter of the conductive monofilament is 0.2-1.2mm, wherein: the diameter of the aluminum conductor is 0.18439-1.1063mm, and the thickness of the copper cladding is 0.007805-0.04685mm. Because the utility model makes a reasonable selection of the diameter of the conductive monofilament, it is not only convenient to process, but also makes the obtained finished cable have good flexibility and is convenient for construction and laying; the insulating layer can play a good role in safety.

Description

Copper clad aluminum single core flame retardant flexible cable

technical field

The utility model belongs to the technical field of wires and cables, in particular to a copper-clad aluminum single-core flame-retardant flexible cable.

Background technique

For the concept of copper-clad aluminum, wire and cable manufacturers are no strangers, that is, the structure of each conductive monofilament that constitutes the conductive core is processed into the outer layer of copper and the inner layer of aluminum, which can save a lot of belongings. Copper, a strategic resource, can make copper play its biggest role. In the literature such as Chinese patent literature, there are many reports in the past, such as: the copper-clad aluminum communication cable introduced by the Chinese patent authorization announcement number CN2881898, the copper-clad aluminum data communication cable disclosed by CN2881899, and the copper-clad aluminum conductor communication cable recommended by CN200979818Y , CN101060024A public copper-clad aluminum conductor or copper-clad steel conductor wire and cable, CN2829026Y disclosed bimetallic conductor monitoring type grounding cable, CN2906844Y disclosed a kind of high-strength copper-clad aluminum wire/cable, as well as CN1758384Y, CN201004349Y, CN2919466Y .

However, none of the above-mentioned patent technical solutions discloses the conductor structure such as the diameter of the copper-clad aluminum conductor, and the applicant believes that whether the conductor diameter can be reasonably selected will have a greater impact on the performance of the finished cable , for example, when the diameter is too large, the cable will be stiff, which is not conducive to laying; on the contrary, when the diameter is too small, the conductive monofilament is easy to break and the processing difficulty is significantly increased, or even cannot be processed at all.

Contents of the invention

The task of the utility model is to provide a copper-clad aluminum single-core flame-retardant flexible cable with excellent flexibility, which is beneficial to laying, easy to process and safe to use.

The task of this utility model is accomplished in this way, a copper-clad aluminum single-core flame-retardant flexible cable, which includes a conductive core 1 and an insulating layer 2 located outside the conductive core 1, the conductive core 1 is made of conductive monofilament 11 Twisted structure, each conductive monofilament 11 is composed of an aluminum conductor 111 and a copper cladding 112 coated on the outside of the aluminum conductor 111, the diameter of the conductive monofilament 11 is 0.2-1.2mm, wherein: the aluminum conductor 111 The diameter is 0.18439-1.1063 mm, and the thickness of the copper cladding layer 112 is 0.007805-0.04685 mm.

There is also a non-woven layer 3 between the conductive wire core 1 and the insulating layer 2 described in the utility model, and the non-woven layer 3 is wrapped around the conductive wire core 1, and the insulating layer 2 is extruded and wrapped in the non-woven fabric layer. Spin cloth layer 3 outside.

The cross-sectional area of the conductive wire core 1 described in the utility model is 1.5-500 mm ² .

The material of the insulating layer 2 described in the utility model is flame-retardant polyvinyl chloride or low-smoke halogen-free polyolefin.

Because the utility model makes a reasonable selection of the diameter of the conductive monofilament 11, it is not only convenient to process but also makes the obtained finished cable have good flexibility and is convenient for construction and laying; the insulating layer 2 can play a good safety role.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a structure of a specific embodiment of the present invention.

FIG. 2 is an enlarged schematic view of the cross section of the conductive monofilament 11 of the present invention.

Detailed ways

Please see Fig. 1 and Fig. 2, see Fig. 2 specifically, each conductive monofilament 11 of the present utility model is made of aluminum conductor 111 and the copper cladding 112 that is coated on the outside of aluminum conductor 111, and the diameter of conductive monofilament 11 is 0.2 ～1.2mm, wherein: the diameter of the aluminum conductor 111 is 0.18439～1.10635mm, and the thickness of the copper cladding 112 is 0.007805～0.04685mm, that is to say, the cross section of the copper cladding 112 accounts for 15±2 of the entire conductive monofilament 11 %, and the rest is the cross section of the aluminum conductor 111. Specifically see FIG. 1 , the conductive wire core 1 is wrapped with a non-woven fabric layer 3 , and then the non-woven fabric layer 3 is extruded with a material preferably flame-retardant polyvinyl chloride or low-smoke halogen-free polyolefin to form an insulating layer 2 . The cross-sections of 18 preferred but not limited specifications of the conductive core 1 obtained by the embodiments of the present invention are shown in the table below.

Claims (4)

1. A copper-clad aluminum single-core flame-retardant flexible cable is characterized in that it includes a conductive core (1) and an insulating layer (2) located outside the conductive core (1), and the conductive core (1) is composed of a conductive single Wires (11) are stranded, and each conductive monofilament (11) is composed of an aluminum conductor (111) and a copper cladding (112) coated on the outside of the aluminum conductor (111), and the conductive monofilament (11) The diameter of the aluminum conductor (111) is 0.2-1.2 mm, wherein the diameter of the aluminum conductor (111) is 0.18439-1.1063 mm, and the thickness of the copper cladding (112) is 0.007805-0.04685 mm. 2. The copper-clad aluminum single-core flame-retardant flexible cable according to claim 1, characterized in that there is a non-woven fabric layer (3) between the conductive core (1) and the insulating layer (2), The non-woven fabric layer (3) is wrapped around the conductive wire core (1), and the insulating layer (2) is extruded and wrapped around the non-woven fabric layer (3). 3. The copper-clad aluminum single-core flame-retardant flexible cable according to claim 1 or 2, characterized in that the cross-sectional area of the conductive core (1) is 1.5-500mm ² . 4. The copper-clad aluminum single-core flame-retardant flexible cable according to claim 1 or 2, characterized in that the material of the insulating layer (2) is flame-retardant polyvinyl chloride or low-smoke halogen-free polyolefin.

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