CN221352407U - Communication cable - Google Patents
Communication cable Download PDFInfo
- Publication number
- CN221352407U CN221352407U CN202323281451.0U CN202323281451U CN221352407U CN 221352407 U CN221352407 U CN 221352407U CN 202323281451 U CN202323281451 U CN 202323281451U CN 221352407 U CN221352407 U CN 221352407U
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- China
- Prior art keywords
- cable
- insulating layer
- conductor
- cable core
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004891 communication Methods 0.000 title claims abstract description 28
- 239000010410 layer Substances 0.000 claims abstract description 48
- 239000004020 conductor Substances 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 20
- 238000005187 foaming Methods 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 229920000728 polyester Polymers 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 235000019271 petrolatum Nutrition 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 239000011810 insulating material Substances 0.000 description 11
- 238000001125 extrusion Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004595 color masterbatch Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of cables and discloses a communication cable; the cable comprises a cable body, wherein the cable body comprises a cable core and an outer protective layer coated outside the cable core; the cable core comprises a plurality of groups of cable core monomers, and each cable core monomer comprises 2 insulating wire cores; the insulated wire core comprises a conductor, a foaming insulating layer is coated on the peripheral wall of the conductor, and a solid insulating layer is coated on the peripheral wall of the foaming insulating layer. By the mode, the dielectric constant of the conductor insulating layer can be reduced, and the transmission performance of the conductor insulating layer can be improved.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a communication cable.
Background
With the continuous development and progress of communication technology, the demand of society for cable transmission speed is increasing. At present, the communication local telephone cable mostly adopts a solid insulation technology, and the outer diameter of the solid insulation cable is generally thicker, so that the weight of the solid insulation cable is larger; meanwhile, the cable conductor is influenced by the solid insulating layer, so that the transmission speed is low and the attenuation is high.
Disclosure of Invention
In response to one or more of the deficiencies of the prior art, the present invention provides a communications cable.
A communication cable comprises a cable body, wherein the cable body comprises a cable core and an outer protective layer coated outside the cable core; the cable core comprises a plurality of groups of cable core monomers, and each cable core monomer comprises 2 insulating wire cores; the insulated wire core comprises a conductor, a foaming insulating layer is coated on the peripheral wall of the conductor, and a solid insulating layer is coated on the peripheral wall of the foaming insulating layer.
The communication cable adopts the foaming insulating layer and the solid insulating layer to jointly form the conductor insulating layer, and the foaming insulating layer and the solid insulating layer are coated outside the conductor through a double-layer co-extrusion technology. The foaming insulating material is subjected to chemical reaction at a high temperature during extrusion to generate gas, the gas is mixed with the foaming insulating material at a high temperature melting state to form a foaming insulating layer, and the gas forms air holes in the foaming insulating layer, so that the dielectric constant of the conductor insulating layer can be reduced, the transmission performance of the conductor insulating layer can be improved, the signal attenuation value can be greatly reduced, and the transmission distance can be prolonged by more than 30%; the foamed insulating layer can also reduce the weight of the communication cable to reduce the transportation cost of the communication cable.
Preferably, 2 pairs of insulated wire cores are twisted to form twisted pairs. Therefore, electromagnetic radiation among the 2 insulated wire cores and crosstalk among adjacent cable core monomers can be reduced better, and electromagnetic interference from outside can be restrained effectively.
Preferably, gaps are formed between the outer protective layer and the cable core monomers, and petroleum jelly is filled in the gaps. Therefore, the moisture-proof and insulating properties of the communication cable can be improved.
Preferably, the outer protective layer comprises a polyester tape and an outer sheath provided on the outer layer of the polyester tape.
Through the structure, the polyester belt can improve the strength, the fireproof performance, the corrosion resistance and the insulation performance of the communication cable; the outer sheath can better isolate the cable core from the external environment, so as to provide better protection for the cable core.
Preferably, the outer protective layer further comprises an aluminum strip arranged between the polyester strip and the outer sheath. Therefore, the tensile strength, the moisture resistance and the pressure resistance of the cable can be improved, and a good shielding effect can be achieved.
Preferably, a tear line is provided between the polyester tape and the aluminum tape. So the outer sheath of the communication cable can be conveniently stripped during construction.
Drawings
Fig. 1 is a schematic structural view of a communication cable in embodiment 1.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to examples. It is to be understood that the examples are illustrative of the present invention and are not intended to be limiting.
Example 1
As shown in fig. 1, the present embodiment provides a communication cable, which includes a cable body 100, wherein the cable body 100 includes a cable core and an outer protection layer 130 coated outside the cable core; the cable core comprises a plurality of groups of cable core monomers 110, and each cable core monomer 110 comprises 2 insulating wire cores 120; the insulated wire core 120 comprises a conductor 121, a foaming insulating layer 122 is coated on the peripheral wall of the conductor 121, and a solid insulating layer 123 is coated on the peripheral wall of the foaming insulating layer 122.
The communication cable in this embodiment employs the foamed insulating layer 122 and the solid insulating layer 123 to form a conductor insulating layer together, and the foamed insulating layer 122 and the solid insulating layer 123 are coated outside the conductor 121 by a double-layer co-extrusion technology. The foaming insulating material is subjected to chemical reaction at a high temperature during extrusion to generate gas, the gas is mixed with the foaming insulating material in a high temperature melting state to form a foaming insulating layer 122, and air holes are formed in the foaming insulating layer 122, so that the dielectric constant of the conductor insulating layer can be reduced, the transmission performance of the conductor insulating layer can be improved, the signal attenuation value can be greatly reduced, and the transmission distance can be prolonged by more than 30%; while the foamed insulation 122 also reduces the weight of the communication cable to reduce the shipping costs of the communication cable.
The solid insulating layer 123 can increase the mechanical performance, tensile strength, wear resistance and moisture resistance of the insulating core 120, and can reduce deformation of the insulating core 120 during the processing process. Meanwhile, the solid insulating layer 123 can be formed into the solid insulating layer 123 with different colors by adding color master batches with different colors into the solid insulating material during extrusion, so that the identification of the insulating wire core 120 is facilitated.
The solid insulating material in a molten state is spirally wound on the surface of the foamed insulating material during extrusion, so that the contact uniformity of the foamed insulating material and the solid insulating material is increased, and the foamed insulating layer 122 formed after the foamed insulating material and the solid insulating material are solidified and the solid insulating layer 123 can be bonded together to form a conductor insulating layer, so that the insulated wire core 120 can have higher transmission performance and mechanical performance.
In this embodiment, the 2 insulated wire cores 120 are twisted to form twisted pairs. Therefore, electromagnetic radiation between the 2 insulated wire cores 120 and crosstalk between adjacent sets of cable core monomers 110 can be preferably reduced, and electromagnetic interference from outside can be effectively suppressed.
In this embodiment, gaps are formed between the outer protection layer 130 and the plurality of sets of cable core monomers 110, and petroleum jelly 140 is filled in the gaps.
With the structure, the petroleum jelly 140 has higher melting temperature, good low-temperature toughness, excellent heat stability and water resistance and stronger electrical insulation property; therefore, the moisture-proof and insulating properties of the communication cable can be improved.
In this embodiment, the outer protective layer 130 includes a polyester tape 131 and an outer sheath 133 disposed on an outer layer of the polyester tape 131.
Through the structure, the polyester tape 131 can improve the strength, the fireproof performance, the corrosion resistance and the insulation performance of the communication cable; the outer jacket 133 preferably isolates the cable core from the external environment, thereby providing better protection for the cable core.
In this embodiment, the outer protective layer 130 further includes an aluminum belt 132 disposed between the polyester belt 131 and the outer sheath 133. Therefore, the tensile strength, the moisture resistance and the pressure resistance of the cable can be improved, and a good shielding effect can be achieved.
In this embodiment, a tear line 134 is provided between the polyester tape 131 and the aluminum tape 132. The tear line 134 can be provided in 1 or 2. The outer sheath 133 can be easily peeled off at the time of construction of the communication cable.
It is to be understood that, based on one or several embodiments provided in the present application, those skilled in the art may combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments, which do not exceed the protection scope of the present application.
The invention and its embodiments have been described above by way of illustration and not limitation, and the examples are merely illustrative of embodiments of the invention and the actual construction is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (6)
1. A communication cable, characterized in that: the cable comprises a cable body (100), wherein the cable body (100) comprises a cable core and an outer protection layer (130) coated outside the cable core; the cable core comprises a plurality of groups of cable core monomers (110), and each cable core monomer (110) comprises 2 insulating wire cores (120); the insulated wire core (120) comprises a conductor (121), a foaming insulating layer (122) is coated on the peripheral wall of the conductor (121), and a solid insulating layer (123) is coated on the peripheral wall of the foaming insulating layer (122).
2. A communication cable according to claim 1, wherein: the 2 insulated wire cores (120) are twisted to form twisted pairs.
3. A communication cable according to claim 1, wherein: gaps are formed between the outer protective layer (130) and the cable core monomers (110), and petroleum jelly (140) is filled in the gaps.
4. A communication cable according to claim 3, wherein: the outer protective layer (130) comprises a polyester belt (131) and an outer sheath (133) arranged on the outer layer of the polyester belt (131).
5. A communication cable according to claim 4, wherein: the outer protective layer (130) also comprises an aluminum belt (132) arranged between the polyester belt (131) and the outer sheath (133).
6. A communication cable according to claim 5, wherein: a tear line (134) is provided between the polyester belt (131) and the aluminum belt (132).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323281451.0U CN221352407U (en) | 2023-12-04 | 2023-12-04 | Communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323281451.0U CN221352407U (en) | 2023-12-04 | 2023-12-04 | Communication cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221352407U true CN221352407U (en) | 2024-07-16 |
Family
ID=91841062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323281451.0U Active CN221352407U (en) | 2023-12-04 | 2023-12-04 | Communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221352407U (en) |
-
2023
- 2023-12-04 CN CN202323281451.0U patent/CN221352407U/en active Active
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