CN210200357U

CN210200357U - Multiple flame-retardant double-row six-type network cable

Info

Publication number: CN210200357U
Application number: CN201921248446.0U
Authority: CN
Inventors: Xianli Zheng; 郑鲜莉; Yaowei Zhang; 张姚伟; Peigen Yao; 姚佩根; Fuxiang Gu; 顾富祥
Original assignee: Zhejiang Hai Yan Electronic Cable Co Ltd
Current assignee: Zhejiang Hai Yan Electronic Cable Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-03-27
Anticipated expiration: 2029-08-02

Abstract

The utility model relates to a six kinds of net twines of multiple fire-retardant, a six kinds of net twines of multiple fire-retardant include same first cable and second cable, are equipped with the connecting piece between first cable and the second cable, first cable has total cable core and the cladding at the fire-retardant outer jacket of total cable core surface, the cable core has two branches cable core and "ten" style of calligraphy skeleton, a plurality of divide the cable core to inlay and constitute a total cable core in "ten" style of calligraphy skeleton, divide the cable core to lead the core transposition by two the same singles and form. The single conductive core is provided with a central copper conductor and an insulating layer wrapped on the periphery of the copper conductor, wherein the insulating layer comprises a first insulating layer and a second insulating layer, specifically, the first insulating layer is an HDPE insulating layer, and the second insulating layer is an FEP flame-retardant insulating layer.

Description

Multiple flame-retardant double-row six-type network cable

Technical Field

The utility model relates to a cable field specifically is a six kinds of net twines of multiple fire-retardant double.

Background

The cable is a transmission line in which a signal wire is wrapped with a metallic mesh braid. The braid is typically red copper or tin-plated copper. The wire and cable industry is the second industry in China next to the automobile industry, and both the product variety satisfaction rate and the domestic market share rate exceed 90%. The total output value of the electric wire and the electric cable in China exceeds the United states worldwide, and the electric wire and the electric cable become the first country for producing the electric wire and the electric cable in the world. Along with the high-speed development of the China wire and cable industry, the number of newly added enterprises is continuously increased, and the overall technical level of the industry is greatly improved.

With the rapid development of network technology and the continuous improvement of computer performance, people have higher and higher requirements on comprehensive performance. From the traditional audio copper core twisted-pair local telephone cable to the gigabit local area network technology today, the increasing network rate means the improvement of the working efficiency, the generation of the cable radiation and the capacitive coupling is also improved, meanwhile, new battery interference sources are continuously generated in the surrounding environment, the balance characteristic of the UTP non-data cable is not enough to offset the electromagnetic radiation of the high-speed network and the external battery interference (only can meet the electromagnetic compatibility performance during 30-40 MHz data transmission), the adoption of the technology can effectively prevent the external interference from entering the cable (the skin effect of the metal layer), meanwhile, signals in the cable are prevented from radiating outwards (the reflection effect of the metal layer), and the FTP six-class data cable with the bandwidth of 250MHz integrates the balance of the twisted pair and the principle of metal, is a perfect combination of the balance and the principle, and has good electromagnetic compatibility and safety characteristic of preventing battery leakage. Especially in the future six types of integrated wiring systems with high bandwidth and high speed, the cable type will be favored by more users. It is expected that six types of cables will rapidly become market-leading products in the coming years to meet the requirements of the continuous development of future technologies.

At present, the requirement on the network is more and more in the indoor office network wiring, and a cable with large bandwidth is needed, because the environmental condition of the office has higher and higher requirement on the flame retardance of the cable, two independent network cables are wound and twisted when a plurality of cables are used, and inconvenience is brought to wiring construction.

Disclosure of Invention

The utility model discloses a solve prior art's problem, provide a six kinds of net twines of multiple fire-retardant double and include:

the cable comprises a first cable and a second cable which are the same, a connecting piece is arranged between the first cable and the second cable, the first cable is provided with a main cable core and a flame-retardant outer protective layer coated on the outer surface of the main cable core, the cable core is provided with a twisted-pair cable dividing core and a cross-shaped framework, the cable dividing core is embedded in the cross-shaped framework to form the main cable core, and the cable dividing core is formed by twisting two identical single guide cores.

On the basis of the above scheme and as a preferable scheme of the scheme: the single conductive core is provided with a central copper conductor and an insulating layer wrapped on the periphery of the copper conductor, wherein the insulating layer comprises a first insulating layer and a second insulating layer, specifically, the first insulating layer is an HDPE insulating layer, and the second insulating layer is an FEP flame-retardant insulating layer. The FEP material of the second insulating layer can be continuously used within the temperature range of-85 ℃ to +200 ℃, the performance is not changed even under the limit condition of-200 ℃ to +260 ℃, and the FEP material can be used in a short time. The dielectric property and the environmental stress cracking resistance are also better. The hardness, tensile strength and creep property are better than those of low-density polyethylene; the cable has better wear resistance, electrical insulation, toughness and cold resistance, and adopts a double-insulation-layer structure for insulation, so that the flame retardance of the cable is improved.

On the basis of the above scheme and as a preferable scheme of the scheme: four branch cable cores are distributed around the cross-shaped framework, and the outer walls of the branch cable cores are in contact with the outer wall of the cross-shaped framework.

On the basis of the scheme, and as a preferred scheme of the scheme, the center position of the cross-shaped framework is respectively provided with a partition plate in the upper direction, the lower direction, the left direction and the right direction, a keel groove is formed between two adjacent partition plates, and the partition plates extend outwards to form a cone shape, so that the cable distribution cores can be conveniently placed in the keel grooves.

On the basis of the above scheme and as a preferable scheme of the scheme: the cross-shaped framework is a flame-retardant foaming framework, the consumption of materials is reduced by the foaming framework, the weight of the cable is reduced, and the manufacturing cost of the cable is reduced.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the insulation adopts a double-insulation layer structure, so that the flame retardance of the cable is improved, and two independent cables are connected together through a connecting piece to form a whole; the problem of two independent cables twine together at pipeline threading in-process is solved, do not receive the pin down each other when effectively solving cable installation simultaneously again, easy to assemble.

Drawings

Fig. 1 is an overall schematic view of the present invention.

In the figure: 1. a copper conductor; 2. a first insulating layer; 3. a second insulating layer; 4. a cross-shaped framework; 5. a flame retardant protective layer; 6. a connecting member; 7. a keel groove; 8. a partition plate.

Detailed Description

The technical solution of the present invention will be further explained with reference to the following embodiments and accompanying drawings.

As shown in fig. 1, the utility model relates to a six kinds of net twines of multiple fire-retardant double, include:

The single conductive core is provided with a central copper conductor and an insulating layer wrapped on the periphery of the copper conductor, wherein the insulating layer comprises a first insulating layer and a second insulating layer, specifically, the first insulating layer is an HDPE insulating layer, and the second insulating layer is an FEP flame-retardant insulating layer. The FEP material of the second insulating layer can be continuously used within the temperature range of-85 ℃ to +200 ℃, the performance is not changed even under the limit condition of-200 ℃ to +260 ℃, and the FEP material can be used in a short time. The dielectric property and the environmental stress cracking resistance are also better. The hardness, tensile strength and creep property are better than those of low-density polyethylene; the cable has better wear resistance, electrical insulation, toughness and cold resistance, and adopts a double-insulation-layer structure for insulation, so that the flame retardance of the cable is improved.

Four branch cable cores are distributed around the cross-shaped framework, and the outer walls of the branch cable cores are in contact with the outer wall of the cross-shaped framework.

It is worth mentioning that the center position of the cross-shaped framework is respectively provided with a spacing plate in the upper, lower, left and right directions, a keel groove is formed between two adjacent spacing plates, and the spacing plates extend outwards to form a cone shape, so that the cable splitting core can be conveniently placed in the keel groove.

Preferably, the cross-shaped framework is a flame-retardant foaming framework, the consumption of materials is reduced by the foaming framework, the weight of the cable is reduced, and the manufacturing cost of the cable is reduced.

It is worth saying that the connecting piece between first cable and the butterfly cable is continuous thin neck and is used for avoiding two independent cables to twine together in the pipeline threading process, simultaneously effectively solves the cable installation and does not receive the restraint each other, easy to assemble.

The utility model has the advantages that:

the insulation adopts a double-insulation layer structure, the flame retardance of the cable is improved, and two independent six types of network cables are connected together through a thin neck to form a whole; the problem of two independent cables twine together at pipeline threading in-process is solved, do not receive the pin down each other when effectively solving cable installation simultaneously again, easy to assemble.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a six kinds of net twines of multiple fire-retardant double, its characterized in that, includes same first cable and second cable, is equipped with the connecting piece between first cable and the second cable, first cable has total cable core and the fire-retardant outer jacket of cladding at total cable core surface, the cable core has two pairs of branch cable cores and "cross" style of calligraphy skeleton, a plurality of branch cable core inlays and constitutes a total cable core in "cross" style of calligraphy skeleton, branch cable core is formed by two the same single core transposition of leading.

2. The six kinds of net twine in one pair of six kinds of multiple fire-retardant double rows of claim 1, wherein, the single conductive core has central copper conductor and wraps up the insulating layer in copper conductor periphery, the insulating layer includes first insulating layer and second insulating layer, specifically, first insulating layer is HDPE insulating layer, the second insulating layer is FEP fire-retardant insulating layer.

3. The multiple flame-retardant double-row six-type network cable according to claim 1, wherein four branch cable cores are distributed around the cross-shaped framework, and the outer walls of the branch cable cores are in contact with the outer wall of the cross-shaped framework.

4. The multiple flame-retardant double-row six-type network cable according to claim 1, wherein the center of the cross-shaped frame is provided with partition plates in four directions, namely upward, downward, leftward and rightward, a keel groove is formed between two adjacent partition plates, and the partition plates extend outward to form a cone shape, so that the cable distribution core can be conveniently placed in the keel groove.

5. The multi-flame-retardant double-row six-type net twine as claimed in claim 1, wherein the cross-shaped skeleton is a flame-retardant foamed skeleton.