CN220984230U - Multi-core data cable - Google Patents
Multi-core data cable Download PDFInfo
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- CN220984230U CN220984230U CN202322762085.4U CN202322762085U CN220984230U CN 220984230 U CN220984230 U CN 220984230U CN 202322762085 U CN202322762085 U CN 202322762085U CN 220984230 U CN220984230 U CN 220984230U
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- 238000005253 cladding Methods 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims description 23
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Abstract
The utility model relates to a multi-core data cable comprising: the first wire pair comprises two first signal wires, two first insulating layers and a first shielding layer, wherein the two first signal wires are mutually twisted, the two first insulating layers are respectively coated on the two first signal wires, and the first shielding layer is coated on the two first insulating layers; the power line comprises a first wire and a second insulating layer, and the second insulating layer is coated on the first wire; cladding component, it cladding is in first pair of wires and power cord, and it includes: a third insulating layer, a second shielding layer and a sheath. According to the utility model, the first shielding layer of the signal wire and the second shielding layer are arranged in the cladding component of the assembly cable, so that a double-shielding structure is formed, the cable has stronger anti-interference performance, and the stability of data transmission is ensured.
Description
Technical Field
The utility model relates to the technical field of data cables, in particular to a multi-core data cable.
Background
The requirements on data acquisition in modern industrial production and scientific research are increasingly increased, and in some high-speed and high-precision measurements such as transient signal measurement, image processing and the like, high-speed data acquisition is required, and the Universal Serial Bus (USB) cable has the advantages of convenience in installation, high bandwidth, easiness in expansion and the like, and has gradually become the development trend of modern data transmission cables.
The conventional high-speed data line is easy to leak in signal transmission in the use process, has poor anti-interference capability, and is easy to cause acquired data distortion in some working environments with strong electromagnetic interference.
Disclosure of utility model
Therefore, the technical problem to be solved by the utility model is to overcome the prior art, thereby providing the multi-core data cable.
In order to solve the above technical problems, the present utility model provides a multi-core data cable, including:
The first wire pair comprises two first signal wires, two first insulating layers and a first shielding layer, wherein the two first signal wires are mutually twisted, the two first insulating layers are respectively coated on the two first signal wires, and the first shielding layer is coated on the two first insulating layers;
the power line comprises a first wire and a second insulating layer, and the second insulating layer is coated on the first wire;
Cladding component, it cladding is in first pair of wires and power cord, and it includes: the third insulating layer, second shielding layer and sheath, the third insulating layer cladding is in first pair of lines and power cord, the second shielding layer cladding is in the third insulating layer, the sheath cladding is in the second shielding layer.
In one embodiment of the present utility model, the first shielding layer is an aluminum foil mylar layer.
In one embodiment of the utility model, at least one configuration line is further included, the configuration line being disposed between the first line pair and the second line pair.
In one embodiment of the utility model, the configuration wire is configured as a tensile wire.
In one embodiment of the utility model, the configuration line is configured as a power line.
In one embodiment of the utility model, the first pair of wires is further provided with a first ground wire, which is arranged at one side of the first insulating layer and is covered by the first shielding layer.
In one embodiment of the present utility model, a second ground wire is further disposed within the cladding assembly, the second ground wire being disposed on one side of the first pair.
In one embodiment of the present utility model, a second wire pair is further disposed within the sheathing assembly, the second wire pair comprising: the first signal wires are twisted with each other, the second signal wires are respectively coated on the fourth insulating layers of the second signal wires, and the third shielding layers are coated outside the two fourth insulating layers.
In one embodiment of the present utility model, the first signal line and the second signal line have an outer diameter of 0.3mm to 0.5mm.
In one embodiment of the present utility model, the first signal line and the second signal line are twisted by at least seven strands of second wires, and the outer diameter of the second wires is 0.1mm to 0.15mm.
In one embodiment of the utility model, the second shielding layer comprises one or more of an aluminum foil layer and a metal braid layer.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
According to the multi-core data cable, the first shielding layer is independently coated on the first wire pair serving as the signal wire and the second wire pair serving as the signal wire, the data cable is individually wrapped and shielded, and the second shielding layer is arranged in the coating component of the assembly cable, so that a double-shielding structure is formed, the cable has high anti-interference performance, and the stability of data transmission is guaranteed.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
Fig. 1 is a cross-sectional view of an assembly cable of the present utility model.
Description of the specification reference numerals: 1. a first pair of wires; 101. a first signal line; 102. a first insulating layer; 103. a first ground line; 104. a first shielding layer; 2. a first wire; 3. a second insulating layer; 4. a third insulating layer; 5. a second shielding layer; 6. a sheath; 7. a configuration line; 8. a second wire pair; 9. and a second ground line.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1, a multi-core data cable of the present utility model includes:
The first pair 1 includes two first signal lines 101, two first insulating layers 102, and a first shielding layer 104, where the two first signal lines 101 are twisted with each other, the two first insulating layers 102 are respectively coated on the two first signal lines 101, and the first shielding layer 104 is coated on the two first insulating layers 102;
The power line comprises a first wire 2 and a second insulating layer 3, wherein the second insulating layer 3 is coated on the first wire 2;
Cladding component, it cladding is to 1 and power cord of first pair, and it includes: the novel power line comprises a third insulating layer 4, a second shielding layer 5 and a sheath 6, wherein the third insulating layer 4 is coated on the first line pair 1 and the power line, the second shielding layer 5 is coated on the third insulating layer 4, and the sheath 6 is coated on the second shielding layer 5.
According to the multi-core data cable disclosed by the utility model, the first wire pair 1 is a signal transmission wire pair, the data transmission of the USB is realized through the first signal wire 101, the power supply function of the USB is realized through the second power wire, the USB wire is protected in a cladding mode through the cladding component, the first wire pair 1 is of a twisted pair structure and is formed by mutually twisting two groups of first signal wires 101, the two groups of first signal wires 101 are respectively clad with a first insulating layer 102, the first signal wires 101 are mutually insulated and shielded through the first shielding layer 104, the bending performance of the cable is provided, the outer diameter of the cable is reduced due to the restraint of each wire pair, and the cladding component is further provided with the second shielding layer 5 which is used for protecting all wire cores in the USB, so that the first signal wires 101 can be shielded secondarily, and the cable has stronger anti-interference performance.
The first shielding layer 104 is an aluminum foil mylar layer, the aluminum foil mylar is compounded by using aluminum foil and a polyester film through gravure coating, after the aluminum foil mylar is cooked, the aluminum foil mylar is cut and rolled, glue can be allocated, the aluminum foil mylar can be used for assembling shielding and grounding after die cutting, and the aluminum foil mylar comprises: single-sided aluminum foil, double-sided aluminum foil, wing-spreading aluminum foil, hot melt aluminum foil, aluminum foil tape and aluminum-plastic composite tape; the aluminum layer provides conductivity, shielding effectiveness and corrosion resistance, can adapt to the requirements of various different ranges, and the shielding range is mainly 100K-3GHz, wherein a layer of hot melt adhesive is coated on one surface of the aluminum foil, which is in contact with the first insulating layer 102, and the hot melt adhesive can be tightly coated with cable core insulation under the condition of high-temperature preheating, so that the insulating performance is improved, the aluminum foil is mainly used for shielding high-frequency electromagnetic waves, and induction current is prevented from being generated by the contact of the high-frequency electromagnetic waves and conductors of the cable so as to increase crosstalk.
The cable further comprises at least one configuration wire 7, the configuration wire 7 is arranged between the first wire pair 1 and the second wire pair 8, the configuration wire 7 is configured as one or more of a tensile wire or a power wire, when the configuration wire is configured as the power wire, the power supply capacity of the cable can be increased, larger quick charge power is provided, when the configuration wire is configured as the tensile wire, the tensile effect can be provided for the cable, the tensile strength is improved, in the embodiment, the number of the configuration wires 7 is three, two groups are power wires, the other group is a tensile wire, the power supply performance and the tensile performance of the cable are both considered, and meanwhile, the cable is compact in structure, and the outer diameter of the cable is reduced.
The first pair 1 is further provided with a first ground wire 103, the first ground wire 103 is arranged on one side of the first insulating layer 102 and is covered by the first shielding layer 104, the first ground wire 103 is an inner ground wire and is arranged in the first shielding layer 104, a low inductance loop is provided for transmission signals, the influence of crosstalk and conduction radiation between wires can be reduced, and surface current generated by an electromagnetic field inside the wires is drained, so that interference of clutter signals is prevented.
The second ground wire 9 is further arranged in the cladding assembly, the second ground wire 9 is an outer ground wire, the second ground wire 9 is arranged on one side of the first wire pair 1, the second ground wire 9 is arranged outside the first wire pair 1 through the arrangement of the second ground wire 9 in a cable, the number of the second ground wires 9 is two, a low inductance loop is further provided for transmission signals, the influence of crosstalk and conduction radiation between wires can be reduced, and surface currents generated by electromagnetic fields inside the wires are conducted, so that clutter signal interference is prevented.
A second wire pair 8 is further disposed in the wrapping assembly, and the second wire pair 8 includes: the two groups of second signal wires twisted with each other, the two groups of fourth insulating layers respectively coated on the second signal wires, and the third shielding layers coated outside the two groups of fourth insulating layers, the second wire pair 8 and the first wire pair 1 have basically the same structure, and the number is two, and the difference is that the second wire pair 8 is internally provided with no first ground wire 103, and the second wire pair 8 has lower requirements on stability for transmitting low-speed data, so that the size of the second wire pair 8 can be reduced by reducing the ground wire arrangement.
The external diameter of first signal line 101 and second signal line is 0.3mm-0.5mm, signal line and second signal line are stranded by seven strand at least second wires and form, and the second wire is tin-plated stranded soft copper wire, the external diameter of second wire is 0.1mm-0.15mm, and the size of first signal line 101 is the same with the second signal line, and in this embodiment, its external diameter is 0.38mm, and the external diameter of second wire is 0.127mm, the error range of second wire is positive and negative 0.1mm, can guarantee cable transmission performance, and compact structure reduces the external diameter simultaneously.
In terms of structure, from the cross-section perspective, two first wire pairs 1 are attached and symmetrically arranged on the upper part in the cladding component, two second wire pairs 8 are elliptical due to lack of ground wires, the elliptical length direction is arranged up and down, the two second wire pairs 8 are provided with gaps, five groups of wire cores are respectively arranged in the vertical and transverse directions, a group of configuration wires 7 and two groups of power wires are respectively arranged between the first wire pairs 1 and the second wire pairs 8, two groups of wire pairs 1 and the outer sides of the second wire pairs 8 are respectively arranged, two groups of wire cores are respectively arranged on the outer sides of the two groups of first wire pairs 1 and the outer sides of the second wire pairs 8, which are close to one side, of the five groups of wire cores are filled in gaps between the first wire pairs 1 and the second wire pairs 8, the effective utilization of gap space is formed, the wire pairs and the wire cores are close to the circular shape, and the structure is compact and stable.
In order to identify the wire cores in the cable, the color of each wire core is different, specifically, the number of the first wire pairs 1 is two, the first wire pairs 1 are yellow and blue, the second wire pairs 1 are orange and purple, the number of the second wire pairs 8 are two, the first wire pairs 8 are white and green, the second wire pairs 8 are gray and pink, the power wires are black and red, and the configuration wires 7 are light yellow, light green and light blue.
The materials of the first insulating layer 102, the second insulating layer 3 and the fourth insulating layer are modified thermoplastic polyester elastomer, the insulating material has the advantages of higher insulating property, high strength and better dynamic mechanical property, the material of the third insulating layer 4 is modified polypropylene material, the smaller dielectric constant of the third insulating layer can ensure the transmission property of the cable, the double-shielding structure of the single metal tape wrapping shielding of the signal wire cable and the total shielding of the cable core after the assembly cable is adopted, the cable has stronger interference resistance, and the sheath 6 uses modified high-elastic modulus polyurethane, so that the cable is soft and has good wear resistance and environmental resistance.
The second shielding layer 5 includes one or more of an aluminum foil layer and a metal braiding layer, the metal braiding layer is formed by braiding metal wires in a certain braiding structure through braiding equipment, the material of the metal braiding layer is selected to be suitable for one or more of copper wires (tinned copper wires), aluminum alloy wires, copper clad aluminum, copper strips or copper plastic strips, aluminum strips or aluminum plastic strips, steel strips and other materials, corresponding to the metal braiding, different structural parameters have different shielding performance, the shielding effectiveness of the braiding layer is related to the structural parameters such as conductivity and permeability of the metal itself, the more the layer number is, the larger the coverage rate is, the smaller the braiding angle is, the shielding performance of the braiding layer is better, in this embodiment, the braiding angle is between 30-45 degrees, and the coverage rate is above 80% for single-layer braiding, so that the shielding performance is converted into energy in other forms such as heat energy, potential energy and the like through mechanisms such as hysteresis loss, dielectric loss, resistance loss and the like, and the unwanted energy is consumed, so that the effect of shielding and absorption is achieved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. A multi-core data cable, comprising:
The first wire pair comprises two first signal wires, two first insulating layers and a first shielding layer, wherein the two first signal wires are mutually twisted, the two first insulating layers are respectively coated on the two first signal wires, and the first shielding layer is coated on the two first insulating layers;
the power line comprises a first wire and a second insulating layer, and the second insulating layer is coated on the first wire;
Cladding component, it cladding is in first pair of wires and power cord, and it includes: the third insulating layer, second shielding layer and sheath, the third insulating layer cladding is in first pair of lines and power cord, the second shielding layer cladding is in the third insulating layer, the sheath cladding is in the second shielding layer.
2. A multi-core data cable as claimed in claim 1, wherein: the first shielding layer is an aluminum foil Mylar layer.
3. A multi-core data cable as claimed in claim 2, wherein: at least one configuration line is also included, the configuration line being disposed between the first line pair and the second line pair.
4. A multi-core data cable according to claim 3, wherein: the configuration wire is configured as a tensile wire or a power wire.
5. A multi-core data cable according to claim 3, wherein: the first wire pair is also provided with a first ground wire which is arranged on one side of the first insulating layer and is covered by the first shielding layer.
6. A multi-core data cable as claimed in claim 1, wherein: and a second ground wire is arranged in the cladding assembly and is arranged on one side of the first wire pair.
7. A multi-core data cable as claimed in claim 1, wherein: a second wire pair is further disposed in the cladding assembly, the second wire pair including: the first signal wires are twisted with each other, the second signal wires are respectively coated on the fourth insulating layers of the second signal wires, and the third shielding layers are coated outside the two fourth insulating layers.
8. A multi-core data cable as claimed in claim 1, wherein: the outer diameters of the first signal wire and the second signal wire are 0.3mm-0.5mm.
9. A multi-core data cable as claimed in claim 1, wherein: the first signal wire and the second signal wire are formed by twisting at least seven strands of second wires, and the outer diameter of each second wire is 0.1-0.15 mm.
10. A multi-core data cable as claimed in claim 1, wherein: the second shielding layer includes one or more of an aluminum foil layer and a metal braid layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322762085.4U CN220984230U (en) | 2023-10-13 | 2023-10-13 | Multi-core data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322762085.4U CN220984230U (en) | 2023-10-13 | 2023-10-13 | Multi-core data cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220984230U true CN220984230U (en) | 2024-05-17 |
Family
ID=91056670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322762085.4U Active CN220984230U (en) | 2023-10-13 | 2023-10-13 | Multi-core data cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220984230U (en) |
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2023
- 2023-10-13 CN CN202322762085.4U patent/CN220984230U/en active Active
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