CN220962877U - Multi-core shielding flame-retardant computer cable - Google Patents
Multi-core shielding flame-retardant computer cable Download PDFInfo
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- CN220962877U CN220962877U CN202322685191.7U CN202322685191U CN220962877U CN 220962877 U CN220962877 U CN 220962877U CN 202322685191 U CN202322685191 U CN 202322685191U CN 220962877 U CN220962877 U CN 220962877U
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 41
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000010410 layer Substances 0.000 claims abstract description 74
- 239000011241 protective layer Substances 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 8
- 239000010445 mica Substances 0.000 claims abstract description 7
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 7
- 229920000098 polyolefin Polymers 0.000 claims description 19
- 230000009970 fire resistant effect Effects 0.000 claims description 17
- 239000000779 smoke Substances 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 6
- 239000008397 galvanized steel Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 238000004132 cross linking Methods 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 abstract 1
- 230000002277 temperature effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 241000256602 Isoptera Species 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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- 230000009975 flexible effect Effects 0.000 description 1
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Abstract
The utility model discloses a multi-core shielding flame-retardant computer cable, which comprises a total cable core and an outer sheath for wrapping the total cable core, wherein the total cable core comprises a plurality of wire cores and a filler, the wire cores sequentially comprise a wire, a first wrapping belt, a shielding belt and a second wrapping belt from inside to outside, and the outer sheath sequentially comprises a third wrapping belt, a total shielding layer, an inner protective layer, an armor layer, an oxygen isolation layer, a fireproof layer and an outer protective layer from inside to outside. The utility model has reasonable structural design and has the following beneficial effects: 2 layers of calcined mica tapes are adopted outside the conductor to overlap and wrap, so that the cable ensures smooth circuit within 180 minutes at a high temperature of 950 ℃; an oxygen isolation layer is additionally arranged outside the armor layer, so that the cable can generate a hard ceramic hard shell under the high-temperature condition, and the cable is thermally insulated and fire-isolated; the fireproof layer is additionally arranged outside the oxygen isolation layer, so that a hard shell armor can be formed after the oxygen isolation layer burns under the high temperature effect; finally, the outer protective layer can expand when meeting fire to release crystal water to reduce the combustion temperature of the cable.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a multi-core shielding flame-retardant computer cable.
Background
Communication devices today take a significant position in the whole industrial system, the quality of which is directly related to the quality of the industrial product, since many operating requirements are input via the control panel on the machine transmitted via the cable, which product is positively scrapped if the cable signal is not good. With the development of environmental protection and safety concepts gradually going deep into the mind and modern technology, wires and cables as matching products of related equipment are facing higher and higher requirements. The cables in a plurality of automation products are required to meet various stress requirements such as severe bending, torsion and the like, and also have the environment-friendly, flame-retardant and fire-resistant performances and high-speed data transmission capacity, so that the accurate and flexible action postures of the machine can be ensured by being suitable for various stresses; meanwhile, the high-speed data transmission capability represents the powerful data processing capability and rich functions of the machine.
Meanwhile, with the continuous development of economy, the national fire-fighting requirements on high-rise buildings and public places are more and more strict, and the market demands on fire-retardant fire-resistant wires and cables are more and more in aspects of fire-fighting electric lines, emergency lighting lines, computer room main control lines, lighting and control lines in key places and the like. The traditional flame-retardant fire-resistant computer cable has a single structure, unsatisfactory flame-retardant fire-resistant effect, difficult satisfaction of the flame-retardant B 1 level requirement of G B31247-2014, difficult satisfaction of the fire-retardant performance, smooth circuit within 180min under the condition of 950 ℃ high temperature, and urgent improvement of the quality of the flame-retardant B 1 level product.
Disclosure of utility model
The utility model aims to provide a multi-core shielding flame-retardant computer cable, which is used for improving the flame-retardant and fire-resistant capabilities of the computer cable and enabling the temperature resistance level of the cable to reach 125 ℃.
In order to achieve the above purpose, the technical scheme of the utility model provides a multi-core shielding flame-retardant computer cable, which comprises a total cable core and an outer sheath for wrapping the total cable core, wherein the total cable core comprises a plurality of wire cores and fillers, the wire cores sequentially comprise a wire, a first belting, a shielding part and a second belting from inside to outside, and the outer sheath sequentially comprises a third belting, a total shielding part, an inner protective layer, an armor layer, an oxygen barrier layer, a flame-retardant layer and an outer protective layer from inside to outside.
Further, a conductor is arranged in the center of the wire, a fire-resistant layer is arranged on the outer side of the conductor, and an insulating layer is arranged on the outer side of the fire-resistant layer.
Further, the total cable core comprises four wire cores, and the wire cores comprise two wires.
Further, the first strap, the second strap and the third strap are polyester straps.
Further, the sub-shields are copper wire braided shields, and the total shields are copper wire braided shields.
Further, the inner protective layer is a halogen-free low-smoke high-flame-retardance polyolefin sheath, and the outer protective layer is a halogen-free low-smoke high-flame-retardance B 1 -level polyolefin sheath.
Further, the conductor is a stranded round copper conductor, the fire-resistant layer is a 2-layer calcined mica layer, and the insulating layer is a 125 ℃ halogen-free low-smoke irradiation crosslinking flame-retardant polyolefin insulating layer. The fire-resistant layer adopts 2 layers of calcined mica to overlap and wrap, the fire-resistant temperature can reach 950 ℃, and the duration of power supply can reach 180min. The insulating layer adopts 125 ℃ halogen-free low-smoke irradiation crosslinking flame-retardant polyolefin insulating material, so that the temperature resistance grade of the cable reaches 125 ℃, and the cable is halogen-free and more environment-friendly.
Further, the filler is a flame-retardant high-temperature filling rope.
Further, the armor is galvanized steel wire armor, so that the integrity and the electrical performance of the cable structure can be effectively protected, and the service life of the cable is prolonged. The galvanized steel wire armor is used for protecting the cable from being damaged and injured by external mechanical force, and can prevent mice and termites from biting, so that the problem of power transmission caused by armor is avoided, and the bending radius of the armor is large.
Further, the oxygen isolation layer is a ceramic polyolefin fireproof sheath, and the fireproof layer is a ceramic fireproof composite belt. The oxygen-isolating layer is ceramic polyolefin fireproof sheath material, can generate hard ceramic hard shell under the condition of flame burning or high temperature, does not melt or drip, can resist water spraying and mechanical vibration, has good heat insulation and fire isolation effects, can ensure smooth electric power and information control under the condition of fire, and can fight for valuable time for personnel escape and fire rescue. The fireproof layer is a ceramic fireproof composite belt, is rapidly sintered into a ceramic hard and complete shell under the action of high temperature, forms a hard shell armor after burning, plays a good role in protecting a circuit, and ensures smoothness of the circuit under the condition of fire.
In summary, the utility model has reasonable structural design, and the technical scheme of the utility model has the following beneficial effects: 2 layers of calcined mica tapes are adopted to overlap and wrap the conductors, so that the smooth circuit of the cable is ensured within 180 minutes under the high temperature condition of 950 ℃; an oxygen isolation layer is additionally arranged outside the armor layer, so that the cable can generate a hard ceramic hard shell under the condition of flame burning or high temperature, and the cable is thermally insulated and fire-isolated; the fireproof layer is additionally arranged outside the oxygen isolation layer, so that the ceramic-shaped hard and complete shell can be quickly sintered under the action of high temperature, the hard shell is armored after combustion, the circuit is well protected, and the smoothness of the circuit under the condition of fire is ensured; finally, the outer protective layer adopts halogen-free low-smoke high-flame-retardance B 1 -level polyolefin sheath material, and can expand to release certain crystallization water when meeting fire to quickly reduce the combustion temperature of the cable, and can isolate the air around the cable, so that a flame source of the outer protective layer does not flame to two sides when the outer protective layer is integrally combusted, does not release halogen acid, and has the self-extinguishing characteristic, and can greatly reduce the emission of toxic corrosive gas and the generation of smoke.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
Reference numerals illustrate: 1-conductors; 2-a refractory layer; 3-an insulating layer; 4-a first belting; 5-shielding; 6-a second belting; 7-filling; 8-a third belting; 9-total shielding; 10-an inner protective layer; 11-armor layer; 12-an oxygen barrier layer; 13-a fire-blocking layer; 14-an outer protective layer.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, but the scope of protection of the present utility model is not limited.
In the present utility model, for a clearer description, the following description is made: the observer views fig. 1 with the front left side of the observer set to the front, the rear right side of the observer set to the rear, the rear left side of the observer set to the left, the front right side of the observer set to the right, the upper side of the observer set to the upper side, and the lower side of the observer set to the lower side, and it should be noted that the terms "front end", "rear end", "left side", "right side", "middle", "upper", "lower", etc. in this text indicate orientations or positional relationships based on the orientations or positional relationships set in the drawings, and are merely for convenience of clearly describing the present utility model, but do not indicate or imply that the structures or components to be referred to must have specific orientations, be constructed in specific orientations, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," "fourth" and the like are used for clarity or to simplify the description, and are not to be construed as indicating or implying a relative importance or quantity.
Referring to fig. 1, the utility model provides a multi-core shielding flame-retardant computer cable, which comprises a total cable core and an outer sheath for wrapping the total cable core, wherein the total cable core comprises a plurality of wire cores and a filler 7, the wire cores sequentially comprise a wire, a first wrapping belt 4, a sub-shielding 5 and a second wrapping belt 6 from inside to outside, and the outer sheath sequentially comprises a third wrapping belt 8, a total shielding 9, an inner protective layer 10, an armor layer 11, an oxygen isolation layer 12, a fireproof layer 13 and an outer protective layer 14 from inside to outside.
As a preferred embodiment of the utility model, the conductor 1 is arranged in the center of the wire, the fire-resistant layer 2 is arranged outside the conductor 1, and the insulating layer 3 is arranged outside the fire-resistant layer 2. The common type computer cable insulating material adopts polyvinyl chloride (PVC) or crosslinked polyethylene (XLPE), the temperature resistance grade of the cable only reaches 70 ℃ or 90 ℃, and the patent adopts 125 ℃ halogen-free low-smoke irradiation crosslinked flame-retardant polyolefin insulating material, so that the temperature resistance grade of the cable reaches 125 ℃, and the cable is halogen-free and more environment-friendly.
Specifically, the total cable core comprises four wire cores, and each wire core comprises two wires.
As a preferred embodiment of the present utility model, the first strap 4, the second strap 6, and the third strap 8 are polyester straps. The polyester tape has good insulating property and can effectively protect the insulating shielding layer from being damaged.
As a preferred embodiment of the present utility model, the partial shield 5 is a copper wire braided shield, and the total shield 9 is a copper wire braided shield. The sub-shields 5 are copper wire braided shields, so that mutual crosstalk between loops is reduced; the total shielding 9 is a copper wire braided shielding, so that external interference is reduced; the double-layer shielding effect is better.
As a preferred embodiment of the present utility model, the inner protective layer 10 is a halogen-free low smoke high flame retardant polyolefin sheath and the outer protective layer 14 is a halogen-free low smoke high flame retardant B 1 grade polyolefin sheath.
The inner protective layer 10 is a halogen-free low-smoke high-flame-retardance polyolefin sheath material, has excellent flame retardance, is halogen-free, is more environment-friendly, and effectively protects the shielding layer from damage. The outer protective layer 14 is halogen-free low-smoke high-flame-retardance B 1 -level polyolefin sheath material, and can expand to release certain crystallization water when meeting fire to quickly reduce the combustion temperature of the cable, and can isolate the air around the cable, so that a flame source of the outer protective layer 14 does not flame to two sides when the outer protective layer is integrally combusted, halogen acid is not released, and the flame-retardant cable has the self-extinguishing characteristic and can greatly reduce the emission of toxic corrosive gas and the generation of smoke.
The common cable outer sheath adopts polyvinyl chloride (PVC) extrusion, but this patent sheath material adopts halogen-free low smoke high fire-retardant B 1 level polyolefin sheath material, can expand and release certain crystallization water when meeting fire and reduce the combustion temperature of cable rapidly, can also keep apart cable burning ambient air for the flame source of outer protective layer 14 when whole burning no longer is to both sides delay burning, not release halogen acid, has self-extinguishing characteristics can a large amount of emission and the production of smog of reducing poisonous corrosive gas. When a fire disaster occurs, the life safety and property loss of people are protected to a greater extent.
As a preferred embodiment of the utility model, the conductor 1 is a stranded round copper conductor, the refractory layer 2 is a 2-layer calcined mica layer, and the insulating layer 3 is a 125 ℃ halogen-free low-smoke irradiation crosslinking flame retardant polyolefin insulating layer.
The common fire-resistant computer cable can only meet the requirement of ensuring that the circuit is smooth within 90min at the temperature of 750 ℃, and the cable adopts a mode of overlapping and wrapping 2 layers of calcined mica tapes, so that the circuit is smooth within 180min at the temperature of 950 ℃.
As a preferred embodiment of the present utility model, the filler 7 is a flame-retardant high-temperature-resistant filler rope, and has excellent flame-retardant properties.
As a preferred embodiment of the present utility model, the armor 11 is a galvanized steel wire armor 11. The common type computer cable basically has no armor layer 11, but the cable adopts galvanized steel wire armor, so that the integrity and the electrical performance of the cable structure can be effectively protected, and the service life of the cable is prolonged. The galvanized steel wire armor is used for protecting the cable from being damaged and injured by external mechanical force, mice and termites can be prevented from being bitten, the problem of power transmission caused by armor is avoided, the bending radius of the armor is large, and the armor layer 11 can be grounded to protect the cable.
As a preferred embodiment of the present utility model, the oxygen barrier layer 12 is a ceramic polyolefin fire-resistant sheath and the fire-resistant layer 13 is a ceramic fire-resistant composite tape. The common type computer cable is not additionally provided with the oxygen isolation layer 12 and the fireproof layer 13, the patent cable is additionally provided with the oxygen isolation layer 12 and the fireproof layer 13, a hard ceramic hard shell can be generated under the condition of flame burning or high temperature, the hard shell is not molten or dripped, water spraying and mechanical vibration can be prevented, the common type computer cable has a very good heat insulation and fire isolation effect, smoothness of electric power and information control under the condition of fire can be ensured, and precious time is striven for personnel escape and fire rescue.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.
Claims (10)
1. The utility model provides a fire-retardant computer cable of multicore shielding, includes total cable core and is used for wrapping up the oversheath of total cable core, its characterized in that: the total cable core comprises a plurality of cable cores and fillers, the structure of each cable core sequentially comprises a wire, a first wrapping belt, a sub-shielding layer and a second wrapping belt from inside to outside, and the structure of the outer sheath sequentially comprises a third wrapping belt, a total shielding layer, an inner protective layer, an armor layer, an oxygen isolation layer, a fireproof layer and an outer protective layer from inside to outside.
2. The multi-core shielded flame retardant computer cable of claim 1, wherein: the center of wire is provided with the conductor, and the outside of conductor is provided with the flame retardant coating, and the flame retardant coating outside is provided with the insulating layer.
3. A multi-core shielded flame retardant computer cable according to claim 1 or 2, wherein: the total cable core comprises four wire cores, and each wire core comprises two wires.
4. A multi-core shielded flame retardant computer cable according to claim 1 or 2, wherein: the first strap, the second strap and the third strap are polyester straps.
5. A multi-core shielded flame retardant computer cable according to claim 1 or 2, wherein: the sub-shields are copper wire braided shields, and the total shield is a copper wire braided shield.
6. A multi-core shielded flame retardant computer cable according to claim 1 or 2, wherein: the inner protective layer is a halogen-free low-smoke high-flame-retardance polyolefin sheath, and the outer protective layer is a halogen-free low-smoke high-flame-retardance B 1 -level polyolefin sheath.
7. A multi-core shielded flame retardant computer cable according to claim 2, wherein: the conductor is a stranded round copper conductor, the fire-resistant layer is a 2-layer calcined mica layer, and the insulating layer is a 125 ℃ halogen-free low-smoke irradiation crosslinking flame-retardant polyolefin insulating layer.
8. A multi-core shielded flame retardant computer cable according to claim 1 or 2, wherein: the filler is a flame-retardant high-temperature filling rope.
9. A multi-core shielded flame retardant computer cable according to claim 1 or 2, wherein: the armor is a galvanized steel wire armor.
10. A multi-core shielded flame retardant computer cable according to claim 1 or 2, wherein: the oxygen isolation layer is a ceramic polyolefin fireproof sheath, and the fireproof layer is a ceramic fireproof composite belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322685191.7U CN220962877U (en) | 2023-10-08 | 2023-10-08 | Multi-core shielding flame-retardant computer cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322685191.7U CN220962877U (en) | 2023-10-08 | 2023-10-08 | Multi-core shielding flame-retardant computer cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220962877U true CN220962877U (en) | 2024-05-14 |
Family
ID=91008629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322685191.7U Active CN220962877U (en) | 2023-10-08 | 2023-10-08 | Multi-core shielding flame-retardant computer cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220962877U (en) |
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2023
- 2023-10-08 CN CN202322685191.7U patent/CN220962877U/en active Active
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