CN219979212U - Fire-resistant data cable - Google Patents
Fire-resistant data cable Download PDFInfo
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- CN219979212U CN219979212U CN202222236627.XU CN202222236627U CN219979212U CN 219979212 U CN219979212 U CN 219979212U CN 202222236627 U CN202222236627 U CN 202222236627U CN 219979212 U CN219979212 U CN 219979212U
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- Prior art keywords
- layer
- flame
- fire resistant
- data cable
- retardant
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 27
- 239000003063 flame retardant Substances 0.000 claims abstract description 39
- 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 claims abstract description 33
- 239000000919 ceramic Substances 0.000 claims abstract description 26
- 239000010445 mica Substances 0.000 claims abstract description 20
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 20
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims abstract description 4
- 239000003365 glass fiber Substances 0.000 claims abstract description 4
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 4
- 239000004945 silicone rubber Substances 0.000 claims abstract description 3
- 239000004020 conductor Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000008054 signal transmission Effects 0.000 abstract description 6
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a fire-resistant data cable, and relates to the field of data transmission cables. The fire-resistant data cable comprises: the sheath layer is made of insulating materials, is cylindrical and is provided with a hollow cavity; the cable core is arranged in the cavity and comprises twisted wires; and the flame-retardant layer is wrapped on the periphery of the cable core, the flame-retardant layer is a ceramic flame-retardant belt, and the ceramic flame-retardant belt is formed by laminating ceramic silicone rubber and high-temperature-resistant glass fiber cloth. The ceramic flame-retardant belt is mainly used for replacing a mica tape to serve as a fireproof layer of an electric wire and a cable, and can also serve as an insulating layer, the ceramic flame-retardant belt has a low dielectric constant, and the problem that signal transmission of the fireproof cable with the mica tape in the prior art is unstable is solved.
Description
Technical Field
The utility model relates to the field of data transmission data cables, in particular to a fire-resistant data cable.
Background
With the advent of the 5G era, the service range of the communication technology service industry in China is wider, so that the service environments of the data transmission cables are more and more diversified, and therefore, the service environments are improved based on the traditional cable structures. In some important occasions, such as large shops, theatres, airports, high-rise buildings, hotels, central machine rooms and the like, cables with higher fire resistance are generally required to ensure that data transmission lines are good.
The prior fire-resistant cable is generally formed by wrapping a mica tape around the periphery of a cable core, wherein the mica tape has excellent high temperature resistance and combustion resistance. For example, chinese patent publication No. CN211957222U discloses a fire-resistant data cable, and relates to the field of data transmission cables. The fire-resistant data cable comprises: the sheath layer is made of insulating materials, is cylindrical and is provided with a hollow cavity; a cable core disposed within the cavity; the fire-retardant layer, this fire-retardant layer setting is between restrictive coating and cable core, and fire-retardant layer adopts fire-retardant area to make, and fire-retardant area is around the outside of package at the cable core, and the mode of wrapping is winding or indulging the package, and fire-retardant layer includes: a mica layer; and the first reinforcing layer is arranged on one side of the mica layer and is compounded with the mica layer through an adhesive. According to the embodiment of the utility model, the flame retardant effect of the cable is effectively enhanced by arranging the flame retardant layer. The flame-retardant belt forming the flame-retardant layer is mainly made of mica, has high heat and flame resistance, can reach A-level flame resistance (950-1000 ℃), has extremely strong flame retardant property, can not deform in a high-temperature environment, and enhances the protection of a cable core. However, the mica material has a high dielectric constant and a strong capacity of binding charges, and charges accumulated in the mica tape can interfere with the inside of the cable, so that signal transmission of the cable is unstable.
Disclosure of Invention
The utility model aims to provide a fire-resistant data cable which solves the problem that signal transmission of fire-resistant cables with mica tapes is unstable in the prior art.
In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme: a fire resistant data cable comprising: the sheath layer is made of insulating materials, is cylindrical and is provided with a hollow cavity; the cable core is arranged in the cavity and comprises twisted wires; and the flame-retardant layer is wrapped on the periphery of the cable core, the flame-retardant layer is a ceramic flame-retardant belt, and the ceramic flame-retardant belt is formed by laminating ceramic silicone rubber and high-temperature-resistant glass fiber cloth.
In the technical scheme, the ceramic flame-retardant belt is mainly used for replacing a mica tape to serve as a fireproof layer of a wire and a cable, and can also serve as an insulating layer, and the ceramic flame-retardant belt has a low dielectric constant and solves the problem that signal transmission of the fireproof cable with the mica tape in the prior art is unstable. In addition, the ceramic hard shell can play a good role in flame retardance, fire resistance, fire prevention and fire isolation under the condition of fire disaster, and the maximum temperature can reach 3000 ℃, so that smoothness of a circuit is effectively ensured.
Further, according to the embodiment of the utility model, the sheath layer is made of a high-flame-retardance environment-friendly material.
Further, according to an embodiment of the present utility model, wherein the cable core includes: the conductors are made of conductive materials, two conductors are arranged, and the two conductors are mutually wound; and the insulating layer is wrapped on the outer side of the conductor and is made of foamed polyethylene material.
Further, according to an embodiment of the present utility model, wherein the thickness of the ceramic flame retardant tape is 0.2 to 0.8mm.
Further, according to an embodiment of the present utility model, wherein the width of the ceramic flame retardant tape is 25-80mm.
Further, according to an embodiment of the present utility model, an outer shielding layer is provided between the sheath layer and the cable core.
Further, according to an embodiment of the present utility model, the outer shielding layer is a high-density braided shield.
Further, according to an embodiment of the utility model, wherein the cable core further comprises a filling cord, the filling cord is arranged in the space between the twisted pairs.
Further, according to an embodiment of the present utility model, wherein the filler cord is made of mica material.
Compared with the prior art, the utility model has the following beneficial effects: the ceramic flame-retardant belt is mainly used for replacing a mica tape to serve as a fireproof layer of an electric wire and a cable, and can also serve as an insulating layer, the ceramic flame-retardant belt has a low dielectric constant, and the problem that signal transmission of the fireproof cable with the mica tape in the prior art is unstable is solved. In addition, the ceramic hard shell can play a good role in flame retardance, fire resistance, fire prevention and fire isolation under the condition of fire disaster, and the maximum temperature can reach 3000 ℃, so that smoothness of a circuit is effectively ensured.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic view of the structure of a fire-resistant data cable according to the present utility model.
In the accompanying drawings
1. Sheath layer 2, outer shielding layer 3, inner shielding layer
4. Flame retardant layer 5, insulating layer 6, conductor
7. Filling rope
Detailed Description
In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.
In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.
[ example 1 ]
The utility model shows a specific structure of a fire-resistant data cable by means of figure 1. As shown in fig. 1, the fire-resistant data cable comprises a sheath layer 1 and a cable core. Wherein, sheath layer 1 adopts insulating material to make, is cylindric, and its inside forms hollow cavity, and the cable core sets up in this cavity. The sheath layer 1 is made of a high-flame-retardance environment-friendly material, the oxygen index of the high-flame-retardance environment-friendly material reaches 51, and the high-flame-retardance environment-friendly material has the effect of low smoke and no halogen. Preferably, the thickness of the sheath layer 1 is 0.9mm, which is 1.8 times of the thickness of the conventional cable, so that the flame retardant performance and the distance between the cables can be improved, and the far-end crosstalk and the near-end crosstalk between the cables can be improved.
The cable core comprises twisted pairs, and the number of the twisted pairs is 4. The periphery of the twisted wire is wrapped with the flame-retardant layer 4, the flame-retardant layer 4 is formed by laminating ceramic silicon rubber and high-temperature-resistant glass fiber cloth, and the ceramic hard shell can play a role in good flame retardance, fire resistance, fire prevention and fire isolation under the condition of fire, and can reach 3000 ℃ at the highest, so that smoothness of a circuit is effectively ensured. The ceramic flame-retardant belt is mainly used for replacing a mica tape to be used as a fireproof layer of an electric wire and a cable, and can also be used as an insulating layer, the ceramic flame-retardant belt has a lower dielectric constant, and the problem of unstable signal transmission of the fireproof cable with the mica tape in the prior art is solved.
Further, the thickness of the ceramic flame-retardant belt is 0.2-0.8mm, and the width is 25-80mm.
In addition, the twisted wire is formed by helically twisting two conductors 6, and an insulating layer 5 is wrapped outside the conductors 6. The insulating layer 5 is specifically made of a high-density PE material in this embodiment, and the PE material has a low dielectric constant, so that mutual interference between the conductors 6 and between the twisted wires can be prevented; the conductor 6 adopts 99.95% oxygen-free copper and has higher conductivity.
An outer shielding layer 2 is arranged between the sheath layer 1 and the cable core. The outer shielding layer 2 is formed by weaving a plurality of strands of metal wires by adopting high-density weaving shielding, wherein the weaving wires are particularly tinned copper wires. The shielding layer 2 can provide a shielding function, and can also enhance the tensile strength of the cable and eliminate the influence of external stress on the cable.
[ example 2 ]
In this embodiment, the cable core further includes a filling rope 7, the filling rope 7 is disposed in a gap between the twisted wires, and the filling rope 7 is made of mica material, so that fire resistance and tensile strength of the cable can be improved. In order to eliminate the influence of the filler ropes 7 on the twisted wires, an inner shielding layer 3 is provided outside the flame-retardant layer 4. The inner shielding layer 3 is specifically a metal foil shielding tape, can shield electromagnetic interference inside the cable and between twisted wires, achieves an omnibearing shielding effect, and is beneficial to improving the speed and quality of data transmission.
While the foregoing describes illustrative embodiments of the present utility model so that those skilled in the art may understand the present utility model, the present utility model is not limited to the specific embodiments, and all applications and creations utilizing the inventive concepts are within the scope of the present utility model as long as the modifications are within the spirit and scope of the present utility model as defined and defined in the appended claims to those skilled in the art.
Claims (10)
1. A fire resistant data cable comprising:
the sheath layer is made of insulating materials, is cylindrical and is provided with a hollow cavity;
the cable core is arranged in the cavity and comprises twisted wires; and
the flame-retardant layer is wrapped on the periphery of the cable core, the flame-retardant layer is a ceramic flame-retardant belt, and the ceramic flame-retardant belt is formed by laminating ceramic silicone rubber and high-temperature-resistant glass fiber cloth.
2. The fire resistant data cable according to claim 1, wherein the jacket layer is made of a high fire resistant environmental protection material.
3. A fire resistant data cable according to claim 1 wherein the sheath layer has a thickness of 0.9mm.
4. The fire resistant data cable according to claim 1, wherein the cable core includes:
the conductors are made of conductive materials, two conductors are arranged, and the two conductors are mutually wound;
and the insulating layer is wrapped on the outer side of the conductor.
5. A fire resistant data cable according to claim 1 wherein the thickness of the ceramic fire resistant tape is 0.2-0.8mm.
6. A fire resistant data cable according to claim 1 wherein the width of the ceramic fire resistant tape is 25-80mm.
7. The fire resistant data cable according to claim 1, wherein an outer shielding layer is provided between the sheath layer and the cable core.
8. The fire resistant data cable according to claim 7, wherein the outer shielding layer is a high density braided shield.
9. The fire resistant data cable according to claim 1, wherein the cable core further comprises a filler cord disposed in the space between the twisted pairs.
10. A fire resistant data cable according to claim 9 wherein the filler cord is made of mica material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222236627.XU CN219979212U (en) | 2022-08-24 | 2022-08-24 | Fire-resistant data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222236627.XU CN219979212U (en) | 2022-08-24 | 2022-08-24 | Fire-resistant data cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219979212U true CN219979212U (en) | 2023-11-07 |
Family
ID=88577047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222236627.XU Active CN219979212U (en) | 2022-08-24 | 2022-08-24 | Fire-resistant data cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219979212U (en) |
-
2022
- 2022-08-24 CN CN202222236627.XU patent/CN219979212U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |