CN218333219U

CN218333219U - Polyethylene insulation copper wire braided shielding flame-retardant computer cable

Info

Publication number: CN218333219U
Application number: CN202222763678.8U
Authority: CN
Inventors: 卢英超; 叶明春; 刘建祥; 姜婷; 章琼焕
Original assignee: Anhui Chunjia Special Cable Co ltd
Current assignee: Anhui Chunjia Special Cable Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-01-17
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a polyethylene insulated copper wire braided shielding flame-retardant computer cable, which comprises a cable core and a comprehensive protective cover, wherein the cable core consists of two insulated wires, two plastic filling cores and a compression-resistant core clamped between the insulated wires and the plastic filling cores; each insulated wire consists of two conductive wire cores, and a belting layer A, a shielding layer and a belting layer B which are sequentially wrapped outside the two conductive wire cores; the comprehensive protection sleeve comprises a wrapping cloth layer and an outer sheath layer which are sequentially wrapped outside the cable core from inside to outside, and filling materials are filled between the comprehensive protection sleeve and the cable core and between the conductive wire core and the wrapping tape layer A. The utility model discloses use for a long time among the prior art can the temperature rise, do not possess the fire resistance, easily take place conflagration scheduling problem and improve, the utility model has the advantages of excellent fire-retardant, resistance to compression, long service life.

Description

Polyethylene insulation copper wire braided shielding flame-retardant computer cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a fire-retardant computer cable of shielding is woven to polyethylene insulation copper wire.

Background

At present, the cable for computer is widely applied to computer systems or automation devices for detection and control in power generation, metallurgy, petroleum, chemical engineering, light textile and other departments, and general industrial computers, and has been widely applied due to strong signal transmission capability and high anti-interference performance.

However, with the development of science and technology, the requirements for system detection and control are higher and higher, cables with better shielding performance, explosion-proof performance and anti-interference performance are needed, meanwhile, due to the fact that the temperature of computer cables rises after long-time use, fire disasters easily occur, and a large number of people and equipment are generally arranged on computer cable use occasions, once the fire disasters occur, huge casualties and economic losses can be caused, so that the existing cables cannot meet the requirements of existing use, and a nonflammable computer cable is urgently needed at present to guarantee personnel safety and reduce economic losses.

To above technical problem, the utility model discloses a fire-retardant computer cable of shielding is woven to polyethylene insulation copper wire, the utility model has the advantages of excellent fire-retardant, resistance to compression, long service life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a polyethylene insulated copper wire braided shielding flame-retardant computer cable which has the advantages of excellent current stability and anti-interference performance, uniform distribution of internal wires, long service life and the like; to solve the problems existing in the prior art.

The utility model discloses a following technical scheme realizes: the utility model discloses a polyethylene insulated copper wire braided shielding flame-retardant computer cable, which comprises a cable core and a comprehensive protective cover, wherein the cable core consists of two insulated wires, two plastic filling cores and a compression-resistant core clamped between the insulated wires and the plastic filling cores; each insulated wire consists of two conductive wire cores, and a belting layer A, a shielding layer and a belting layer B which are sequentially wrapped outside the two conductive wire cores; the comprehensive protection sleeve comprises a wrapping cloth layer and an outer sheath layer which are sequentially wrapped outside the cable core from inside to outside, and filling materials are filled between the comprehensive protection sleeve and the cable core and between the conductive wire core and the wrapping tape layer A.

Furthermore, in order to avoid the problem of damage and deformation caused by inconsistent bearing capacity when the insulated wire and the plastic filling core are pressed, a bearing cavity is formed in the center of the compression-resistant core, and a placing groove for placing the insulated wire and the plastic filling core is formed in the outer wall of the compression-resistant core.

Furthermore, in order to enable the outer layer cable of the copper conductor to have better mechanical property, high flexibility, toughness and good capacitive resistance, the conductive wire core comprises the copper conductor and an insulating layer extruded outside the copper conductor, and the insulating layer is made of polyethylene insulating material.

Furthermore, in order to have higher mechanical strength, wear resistance, flame retardance, low temperature resistance and aging resistance, the outer sheath layer is made of flame-retardant polyvinyl chloride materials.

Furthermore, in order to have better shielding performance, the shielding layer is made of copper wires in a weaving mode.

Furthermore, in order to enable the cable to have high temperature resistance and heat insulation effects, the filler is the dust-free rock wool rope.

Furthermore, in order to ensure that the cable has weather resistance, ageing resistance and chemical corrosion resistance, the wrapping layer B and the wrapping cloth layer are both polyester tapes, and the wrapping layer A is a twisted-pair polyester tape.

The utility model has the advantages of it is following:

(1) The utility model discloses an oversheath adopts special fire-retardant polyvinyl chloride material to make, high fire-retardant has, the environmental protection, better ageing resistance can, conductive core is twisted by two conductors, the conductor is equipped with the insulating layer outward, polyethylene insulation material has better mechanical properties, still be rich in the compliance, and tough, resistant capacitanc can, band layer B, the infantees layer, band layer A adopts the polyester area, and there is not volatilization of harmful smog basically when meeting open flame burning, two conductor twists closely round through pair twist polyester area and twists together, it has still been wrapped by the shielding layer outward, the shielding layer is copper woven shield, make the cable have better shielding property and interference killing feature, avoid producing the spark, fire-retardant and explosion-proof properties have been improved, two sets of pairs center still is equipped with the stopping, make the cable outward appearance seem more round and round, stable in structure, improve the wearability of cable simultaneously.

(2) The utility model discloses be equipped with the anti-pressure core at the cable center, can reduce the mutual extrusion force that core was filled to wire and plastics after receiving the external pressure, when meetting external force, through the bearing chamber with neutralization external force, play and inhale the effect of inhaling the shake decompression, reduce the influence of external pressure to the cable performance.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the structure of the compression-resistant ring core of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a cable core; 2. a comprehensive protective sleeve; 3. an insulated wire; 4. a conductive wire core; 401. a copper conductor; 402. an insulating layer; 5. a wrapping layer A; 6. a shielding layer; 7. a belting layer B; 8. a plastic filled core; 9. wrapping a cloth layer; 10. an outer jacket layer; 11. a filler; 12. a compression resistant core; 13. a pressure-bearing cavity; 14. a placing groove.

Detailed Description

The following embodiments of the present invention are described in detail, and the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments, and in the description of the present invention, words like "front", "back", "left", "right", etc. indicating directions or position relations are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

The utility model provides a technical scheme: a polyethylene insulated copper wire braided shielding flame-retardant computer cable is shown in figures 1 to 3 and comprises a cable core 1 and a comprehensive protective sleeve 2, wherein the cable core 1 consists of two insulated wires 3, two plastic filling cores 8 and a compression-resistant core 12 clamped between the insulated wires 3 and the plastic filling cores 8; each insulated wire 3 comprises two conductive wire cores 4, and a belting layer A5, a shielding layer 6 and a belting layer B7 which are sequentially wrapped outside the two conductive wire cores 4; the comprehensive protection sleeve 2 comprises a wrapping cloth layer 9 and an outer sheath layer 10 which are sequentially wrapped outside the cable core 1 from inside to outside, and filling materials 11 are filled between the comprehensive protection sleeve 2 and the cable core 1 and between the conductive wire core 4 and the wrapping tape layer A5.

As shown in fig. 1 to 3, the center of the anti-pressure core 12 is provided with a pressure-bearing cavity 13, and the outer wall of the anti-pressure core 12 is provided with a placing groove 14 for placing the insulated wire 3 and the plastic filling core 8, so that damage and deformation caused by inconsistent pressure-bearing force when the insulated wire 3 and the plastic filling core 8 are pressed are avoided, and the impact resistance of the cable is improved.

As shown in fig. 3, the conductive core 4 includes a copper conductor 401 and an insulating layer 402 extruded outside the copper conductor 401, the insulating layer 402 is made of polyethylene insulating material, and the insulating layer 402 made of polyethylene insulating material has good mechanical properties, is flexible, and is tough and high in compatibility.

As shown in fig. 1 and 3, the outer sheath layer 10 is made of flame retardant polyvinyl chloride material, and has high mechanical strength, wear resistance, flame retardancy, low temperature resistance and aging resistance.

As shown in fig. 1, the shielding layer 6 is made of copper wires by weaving, and has good shielding performance.

As shown in fig. 1 and 3, the filling material 11 is a dust-free rock wool rope, which has high temperature resistance and heat insulation effect.

As shown in FIGS. 1 and 3, the wrapping layer B7 and the wrapping cloth layer 9 are both polyester tapes, and the wrapping layer A5 is a twisted pair polyester tape, and has weather resistance, aging resistance and chemical resistance.

The principle of the utility model is as follows: the outer sheath is made of special flame-retardant polyvinyl chloride materials, and has high flame retardance, environmental protection and better ageing resistance, the conductive wire core 4 is twisted by two conductors, an insulating layer made of polyethylene insulating materials is arranged outside the conductors, the polyethylene insulating materials have better mechanical property and flexibility, and are tough and high in capacity resistance, the belting layer B7, the wrapping cloth layer 9 and the belting layer A5 adopt polyester tapes, and harmful smoke volatilization does not exist basically when the two conductors are burnt in open fire, the two conductors are twisted together tightly and circularly through the twisted-pair polyester tapes, the outer sheath is further wrapped with a shielding layer 6, the shielding layer 6 is woven by copper, so that the cable has better shielding performance and interference resistance, sparks are avoided, the flame retardance and explosion resistance are improved, the filling materials 11 are further arranged at the centers of the two groups of lines, the appearance of the cable is more round and stable in structure, the abrasion resistance of the cable is improved, the compression resistant core 12 is arranged at the center of the cable, the mutual extrusion force of the wires and the plastic filling core 8 can be reduced after external pressure is applied, and when external force is applied, the impact on the external pressure reducing effect of the cable is reduced by the external force.

Claims

1. The utility model provides a fire-retardant computer cable of polyethylene insulation copper wire braided shield, includes cable core and comprehensive protection cover, its characterized in that: the cable core consists of two insulated wires, two plastic filling cores and a compression-resistant core clamped between the insulated wires and the plastic filling cores; each insulated wire consists of two conductive wire cores, and a belting layer A, a shielding layer and a belting layer B which are sequentially wrapped outside the two conductive wire cores; the comprehensive protection sleeve comprises a wrapping cloth layer and an outer sheath layer which are sequentially wrapped outside the cable core from inside to outside, and filling materials are filled between the comprehensive protection sleeve and the cable core and between the conductive wire core and the wrapping tape layer A.

2. The polyethylene insulated copper wire braided shielding flame-retardant computer cable according to claim 1, wherein a pressure-bearing cavity is formed in the center of the pressure-resistant core, and a placement groove for placing an insulated wire and a plastic filling core is formed in the outer wall of the pressure-resistant core.

3. The polyethylene insulated copper wire braided shielding flame-retardant computer cable according to claim 1, wherein the conductive wire core comprises a copper conductor and an insulating layer extruded outside the copper conductor, and the insulating layer is made of polyethylene insulating material.

4. The polyethylene insulated copper wire braided shielding flame retardant computer cable of claim 1, wherein the outer sheath layer is made of flame retardant polyvinyl chloride material.

5. The polyethylene insulated copper wire braided shielded flame retardant computer cable of claim 1, wherein said shielding layer is made of copper wire braid.

6. The polyethylene insulated copper wire braided shielding flame retardant computer cable of claim 1, wherein the filler is a dust free rock wool rope.

7. The polyethylene insulated copper wire braided shielding flame retardant computer cable according to claim 1, wherein the wrapping tape layer B and the wrapping cloth layer are both polyester tapes, and the wrapping tape layer A is a twisted pair polyester tape.