CN214377727U - Composite cable - Google Patents
Composite cable Download PDFInfo
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- CN214377727U CN214377727U CN202023199738.5U CN202023199738U CN214377727U CN 214377727 U CN214377727 U CN 214377727U CN 202023199738 U CN202023199738 U CN 202023199738U CN 214377727 U CN214377727 U CN 214377727U
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- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 239000004020 conductor Substances 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 22
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 238000009941 weaving Methods 0.000 claims description 9
- 229920006267 polyester film Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 230000036039 immunity Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 13
- 238000009954 braiding Methods 0.000 description 4
- 229920002313 fluoropolymer Polymers 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- Communication Cables (AREA)
- Insulated Conductors (AREA)
Abstract
A composite cable comprises a center layer arranged at the center of the cable, wherein a wrapping layer is wrapped on the outer side of the center layer, a shielding layer is arranged on the outer side of the wrapping layer, and an outer sheath is arranged on the outer side of the shielding layer; the central layer comprises a central axis which is coaxial with the cable, and the outer side of the central axis is provided with a network cable, a power line and a signal wire which are externally tangent to the central axis, internally tangent to the wrapping layer and tangent in pairs; the power line comprises a plurality of power lines I for transmitting small current and a plurality of power lines II for transmitting large current, and the cross sectional area of each power line II is larger than that of each power line I; the network cable and the signal line are respectively provided with a sub-shielding layer. The utility model discloses increase the transmission function of cable, increase the shielding nature of signal line and net twine to the branch shielding layer of signal line and net twine setting simultaneously to and interference immunity each other.
Description
Technical Field
The utility model relates to the technical field of cables, concretely relates to compound cable.
Background
When information interaction is performed between electronic devices, various communication transmission modes may be used, such as internet access communication, serial communication, CAN access communication, and the like. The communication signals have different transmission mechanisms, different protocols and different transmission rates. Therefore, each communication signal is generally transmitted by using a respective communication cable. If the network port signal adopts a network cable, the serial port signal adopts a serial port cable and the like.
The cable is the main facility for power transmission and signal transmission; however, in some cases, the number of cables is very strict, and the limitation on the number of cables is high. This requires that the two signals or even more signals are transmitted together through 1 cable. If the communication system is used in a common occasion, the communication signals can be commonly connected in one cable through the multi-core cable for signal transmission, but the mode easily causes electromagnetic interference among different communication signals, thereby causing the situations of high communication error rate, unstable communication and even communication failure.
In addition, most of the existing cables only have a power line with one specification, and only can transmit current with one specification, or the power line with a large specification is used for transmitting current with a small specification, so that resource waste is caused.
Disclosure of Invention
Aiming at the technical problem, the technical scheme provides the composite cable which can effectively solve the problem.
The utility model discloses a following technical scheme realizes:
a composite cable comprises a center layer arranged at the center of the cable, wherein a total wrapping layer is wrapped on the outer side of the center layer, a shielding layer is arranged on the outer side of the total wrapping layer, and an outer sheath is arranged on the outer side of the shielding layer; the central layer comprises a central axis which is coaxial with the cable, the outer side of the central axis is provided with a mesh wire, a signal wire and a plurality of power wires which are tangent in pairs, and the mesh wire, the signal wire and the plurality of power wires are inscribed in the inner wall of the total wrapping layer; the power lines are arranged along the diameter of the cable, and the central layer of the cable is divided into a left chamber and a right chamber; the network cable and the signal line are respectively arranged in the left chamber and the right chamber.
Furthermore, the network cable, the power line and the signal line are twisted along the central axis.
Furthermore, the signal line is formed by twisting a plurality of distinguishable single-wire conductors; a first sub-shielding layer is arranged on the outer side of the first single-wire conductor; the single-wire conductor I is formed by coaxially twisting a plurality of tinned copper wires, and an insulating layer is wrapped on the outer side of each tinned copper wire.
Furthermore, the network cable is formed by twisting a plurality of twisted pairs, the outer sides of the twisted pairs are wrapped with wrapping layers, and the outer sides of the wrapping layers are provided with a third sub-shielding layer.
Furthermore, each pair of twisted pairs is formed by twisting two distinguishable single-wire conductors; a second sub-shielding layer is arranged on the outer sides of the two second single-wire conductors; the single-wire conductor II is formed by coaxially twisting a plurality of tinned copper wires, and an insulating layer is wrapped on the outer side of each tinned copper wire.
Furthermore, the sub-shielding layer I, the sub-shielding layer II or the sub-shielding layer III is woven and wrapped on the outer side of the signal wire, or woven and wrapped on the outer side of the wrapping layer, or woven and wrapped on the outer side of the twisted pair, the woven shielding layer is formed by weaving tinned copper wires, and the weaving density is greater than or equal to 85%.
Furthermore, the power line comprises a plurality of first power lines for transmitting small current and a plurality of second power lines for transmitting large current, and the cross-sectional area of the second power lines is larger than that of the first power lines.
Furthermore, the central axis adopts a second power line, and a plurality of second power lines are arranged along the diameter of the cable to divide the central layer of the cable into a left chamber and a right chamber; the network cable, the signal line, the first power line and the second power line which are arranged in a plurality of positions are uniformly distributed in the left chamber and the right chamber.
Furthermore, the total wrapping layer is formed by wrapping polyester films, and the covering rate of the total wrapping layer is more than or equal to 10%; the shielding layer adopt to weave the braided shielding layer of parcel in the total around the covering outside, braided shielding layer adopt tinned wire to weave and form, the density of weaving more than or equal to 85%.
Further, the outer sheath is made of polyurethane.
Advantageous effects
The utility model provides a compound cable compares with prior art, and it has following beneficial effect:
(1) the technical scheme includes that a power line is adopted to divide a central layer of a cable into two chambers, and a signal line and a network cable are respectively arranged in the two chambers; the signal line and the network line are isolated by the power line; the mutual interference rate between the signal line and the network cable can be effectively reduced. The transmission function of the cable is increased, and meanwhile, the shielding performance of the signal wire and the network wire and the anti-interference performance of the signal wire and the network wire are increased for the sub-shielding layers arranged on the signal wire and the network wire.
(2) In the technical scheme, the network cable and the signal cable are respectively provided with the separated shielding layers, so that the shielding property and the anti-interference property of the network cable and the signal cable can be increased, and the shielding property and the anti-interference property between adjacent cables can be increased, so that the crosstalk between the adjacent cable pairs is attenuated; meanwhile, the effect that signals and data transmitted by the cable interfere with each other and are influenced in the transmission process can be effectively avoided, and the situation that the signals and the data are stolen or lost in the transmission process can be effectively avoided. The accuracy of signal line transmission in the cable is increased.
(3) In the technical scheme, the power line is set into a power line with a first specification and a power line with a second specification; power supplies that can deliver different currents. When the cable needs to transmit different currents, the power line can be effectively and reasonably utilized, and the waste of resources is reduced or avoided.
Drawings
Fig. 1 is a schematic cross-sectional view of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional view of the network structure of the present invention.
Fig. 3 is a schematic cross-sectional view of the signal line structure of the present invention.
Reference symbols in the drawings: the cable comprises a 1-signal wire, a 11-single-wire conductor I, a 12-insulating layer, a 13-sub shielding layer I, a 2-power line I, a 3-power line II, a 4-network wire, a 41-twisted pair, a 411-single-wire conductor, a 412-insulating layer, a 413-sub shielding layer II, a 42-wrapping layer, a 43-sub shielding layer III, a 5-total wrapping layer, a 6-shielding layer and a 7-outer sheath.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only some, but not all embodiments of the invention. Under the prerequisite that does not deviate from the design concept of the utility model, the ordinary person in the art should fall into the protection scope of the utility model to the various changes and improvements that the technical scheme of the utility model made.
Example 1:
as shown in fig. 1, a composite cable includes a central layer disposed at the center of the cable, the central layer includes a central axis coaxial with the cable, two tangent network cables, signal cables and multiple power cables are disposed outside the central axis, and the network cables, the signal cables and the multiple power cables are inscribed in the inner wall of the total wrapping layer; the plurality of power lines are arranged along the diameter of the cable, and the central layer of the cable is divided into a left chamber and a right chamber; the network cable and the signal cable are respectively arranged in the left chamber and the right chamber.
The power line comprises 2 power lines I for conveying small current and 4 power lines II for conveying large current, and the cross sectional area of each power line II is larger than that of each power line I. In the embodiment, a power line II is adopted as the central axis; wherein, 3 power cord two are set up along the diameter of cable, divide into left cavity and right cavity with the central layer of cable.
The power line I is formed by coaxially twisting a plurality of tinned copper wires, an insulating layer is wrapped on the outer side of each tinned copper wire, and the insulating layer is made of fluoroplastic; the cross section area of each power line I is 2.5mm2 。
The power line II is formed by coaxially twisting a plurality of tinned copper wires; the insulating layer is wrapped on the outer side of the tinned copper wire and made of fluoroplastic; the cross section area of each power line II is 6mm2 。
The signal wire is formed by twisting 2 distinguishable single-wire conductors; the outer sides of the 2 single-wire conductors are provided with sub-shielding layers; the single-wire conductor is formed by coaxially twisting a plurality of tinned copper wires, and an insulating layer is wrapped on the outer side of each tinned copper wire.
In the embodiment, the single-wire conductor in the signal wire is formed by coaxially twisting a plurality of tinned copper wires; the insulating layer is wrapped on the outer side of the tinned copper wire and made of fluoroplastic; the cross-sectional area of each single-wire conductor is 0.2mm2 。
The sub-shielding layer is a braided shielding layer wrapped on the outermost side of the signal wire in a braided mode, the braided shielding layer is formed by braiding tinned copper wires, and the braiding density is larger than or equal to 85%.
The net twine adopts 4 pairs of twisted pair to twist and forms, and 4 pairs of twisted pair's outside parcel has the covering of wrapping, and the outside of covering of wrapping is provided with the branch shielding layer. The wrapping layer is formed by wrapping polyester films, and the covering rate of the wrapping layer is more than or equal to 10%. The branch shielding layer adopts to weave the woven shield layer of parcel in the taped covering outside, and the woven shield layer adopts tinned wire to weave and forms, and the density of weaving is more than or equal to 85%.
Each pair of twisted pairs is formed by twisting two distinguishable single-wire conductors; the single-wire conductors of the twisted pair in the network wire adopt soft copper wires, and the cross section area of each soft copper wire is 0.57mm2 . The outer side of the annealed copper wire is wrapped with an insulating layer, and the insulating layer is made of fluoroplastic.
The outer sides of the two single-wire conductors are provided with sub-shielding layers; the sub-shielding layer is a braided shielding layer wrapped outside the twisted-pair cable in a braided mode, the braided shielding layer is formed by braiding tinned copper wires, and the braiding density is larger than or equal to 85%.
In the embodiment, the network cable and the extra power line are distributed in the right chamber in two, and the signal cable and the two power lines are distributed in the left chamber in one. The network cable, the power line and the signal line are twisted along the central axis.
The outer side of the central layer is wrapped with a total wrapping layer, the total wrapping layer is formed by wrapping polyester films, and the covering rate of the total wrapping layer is more than or equal to 10%.
The outside of covering is provided with the shielding layer always around, the shielding layer adopts to weave the shielding layer of weaving of parcel in the covering outside always, the shielding layer of weaving adopt tinned wire to weave and form, the density more than or equal to 85% of weaving.
An outer sheath is arranged on the outer side of the shielding layer; the outer sheath is made of polyurethane.
Technical parameters of the cable:
1. conductor maximum direct current resistance (+20 ℃): 0.2mm2Is 90.4 omega/km; 2.5mm27.43 omega/km; 6mm23.30 omega/km, 72.8 omega/km of network cable;
2. insulation resistance (+20 ℃): 0.2mm2、2.5mm2、6mm2The network cable is more than or equal to 1000 MOmega.km, and more than or equal to 500 MOmega.km;
3. and (3) voltage test of a finished product: 0.2mm2、2.5mm2、6mm2Single line: the voltage test between the core and the core, and between the core and the shielding layer was performed at a.c2500v for 1 minute, and the voltage test between the mesh core and the core, and between the core and the shielding layer was performed at a.c 1000V for 1 minute.
Claims (10)
1. A composite cable comprises a center layer arranged at the center of the cable, wherein a total wrapping layer (5) is wrapped on the outer side of the center layer, a shielding layer (6) is arranged on the outer side of the total wrapping layer (5), and an outer sheath (7) is arranged on the outer side of the shielding layer (6); the method is characterized in that: the central layer comprises a central axis which is coaxial with the cable, the outer side of the central axis is provided with a mesh wire (4), a signal wire (1) and a plurality of power wires which are tangent in pairs, and the mesh wire (4), the signal wire (1) and the plurality of power wires are inscribed in the inner wall of the total wrapping layer (5); the power lines are arranged along the diameter of the cable, and the central layer of the cable is divided into a left chamber and a right chamber; the network cable (4) and the signal cable (1) are respectively arranged in the left cavity and the right cavity.
2. A composite cable according to claim 1, wherein: the net wire (4), the power wire and the signal wire (1) are twisted along the central axis.
3. A composite cable according to claim 1, wherein: the signal wire (1) is formed by twisting a plurality of distinguishable single-wire conductors I (11); a first sub-shielding layer (13) is arranged on the outer side of the first single-wire conductors (11); the single-wire conductor I (11) is formed by coaxially twisting a plurality of tinned copper wires, and an insulating layer (12) is wrapped on the outer side of each tinned copper wire.
4. A composite cable according to claim 3, wherein: the net wire (4) is formed by twisting a plurality of twisted pairs (41), a wrapping layer (42) wraps the outer sides of the twisted pairs (41), and a sub-shielding layer III (43) is arranged on the outer side of the wrapping layer (42).
5. A composite cable according to claim 4, wherein: each pair of twisted pairs (41) is formed by twisting two distinguishable single-wire conductors II (411); a second sub-shielding layer (413) is arranged on the outer side of the second single-wire conductor (411); the single-wire conductor II (411) is formed by coaxially twisting a plurality of tinned copper wires, and an insulating layer (412) is wrapped on the outer side of each tinned copper wire.
6. A composite cable according to claim 5, wherein: divide shielding layer one, divide shielding layer two or divide shielding layer three adopt to weave the parcel in signal line (1) the outside, or weave the parcel in around covering (42) outside, or weave the braided shielding layer of parcel in twisted pair (41) outside, braided shielding layer adopt tinned wire to weave and form, the density of weaving more than or equal to 85%.
7. A composite cable according to any one of claims 1 to 5, wherein: the power line comprises a plurality of first power lines (2) used for conveying small current and a plurality of second power lines (3) used for conveying large current, and the cross sectional area of the second power lines (3) is larger than that of the first power lines (2).
8. A composite cable according to claim 7, wherein: the central axis adopts a second power line (3), the second power lines (3) are arranged along the diameter of the cable, and the central layer of the cable is divided into a left chamber and a right chamber; the net wires (4), the signal wires (1), the power wires I (2) and the power wires II (3) which are arranged in a plurality of positions are uniformly distributed in the left chamber and the right chamber.
9. A composite cable according to claim 1, wherein: the total wrapping layer (5) is formed by wrapping polyester films, and the covering rate of the total wrapping layer (5) is more than or equal to 10%; shielding layer (6) adopt to weave the braided shield layer of parcel in total around covering (5) outside, braided shield layer adopt tinned wire to weave and form, the density of weaving more than or equal to 85%.
10. A composite cable according to claim 1, wherein: the outer sheath (7) is made of polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023199738.5U CN214377727U (en) | 2020-12-28 | 2020-12-28 | Composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023199738.5U CN214377727U (en) | 2020-12-28 | 2020-12-28 | Composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214377727U true CN214377727U (en) | 2021-10-08 |
Family
ID=77947840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023199738.5U Active CN214377727U (en) | 2020-12-28 | 2020-12-28 | Composite cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214377727U (en) |
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2020
- 2020-12-28 CN CN202023199738.5U patent/CN214377727U/en active Active
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