阅读说明：本技术 多层信号多功能数据线及数据传输线缆 (Multi-functional data line of multilayer signal and data transmission cable ) 是由 耿喜龙 于 2021-06-16 设计创作，主要内容包括：本发明公开了一种多层信号多功能数据线及包括该多层信号多功能数据线的数据传输线缆。具体的,该多层信号多功能数据线包括内部线芯和金属传输层、金属屏蔽层、绝缘层,内部线芯用于传输数据；所述金属传输层用于传输数据,且所述金属传输层包覆于所述内部线芯外侧,所述金属屏蔽层包覆于所述金属传输层的外侧；所述绝缘层设置于所述金属传输层和所述金属屏蔽层之间。如此,本发明解决了现有技术中的数据线在传输过程中存在的信号抗干扰的问题。(The invention discloses a multi-layer signal multifunctional data line and a data transmission cable comprising the same. The multilayer signal multifunctional data line comprises an internal wire core, a metal transmission layer, a metal shielding layer and an insulating layer, wherein the internal wire core is used for transmitting data; the metal transmission layer is used for transmitting data, the metal transmission layer covers the outer side of the inner wire core, and the metal shielding layer covers the outer side of the metal transmission layer; the insulating layer is arranged between the metal transmission layer and the metal shielding layer. Therefore, the invention solves the problem of signal anti-interference in the transmission process of the data line in the prior art.)

1. A multi-layer signal multi-function data line, comprising:

the inner wire core is used for transmitting data;

the metal transmission layer is used for transmitting data and covers the outer side of the inner wire core;

a metal shielding layer coated on the metal

And the insulating layer is arranged between the metal transmission layer and the metal shielding layer.

2. The multi-layer signal multi-function data line of claim 1, wherein the inner wire core is a metal wire core, and an insulating layer is disposed between the metal wire core and the metal transmission layer.

3. The multi-layer signal multi-function data line of claim 1, wherein said internal core is an optical fiber core.

4. The multi-layer signal multi-function data line of claim 3, wherein the optical fiber core is coated with a protective layer.

5. The data line of claim 3, wherein the metal transmission layer comprises a light reflecting conductive layer, and the light reflecting conductive layer is sprayed on the outer side of the optical fiber core; alternatively, the first and second electrodes may be,

the metal transmission layer comprises a metal conducting layer, the metal conducting layer is coated on the outer side of the optical fiber wire core, and the insulating layer is arranged between the optical fiber wire core and the metal conducting layer.

6. The multi-layer signal multifunctional data line as claimed in claim 5, wherein the metal conductive layer is a metal film or a metal wire or a metal paint, and the metal shielding layer is a metal film or a metal wire or a metal paint.

7. The multi-layer signal multi-function data line of claim 6, wherein the metal conductive layer is a plurality of parallel straight wires, or a plurality of parallel diagonal wires, or a plurality of cross-woven wires; the metal shielding layer is a plurality of parallel and straight-line metal wires, or a plurality of parallel and obliquely-wound metal wires, or a plurality of cross-woven metal wires.

8. The multi-layered signal multi-function data line of claim 1, wherein the multi-layered signal multi-function data line comprises a plurality of metal transmission layers, the plurality of metal transmission layers are disposed one after another in a direction away from the inner core, and the insulating layer is disposed between two adjacent metal transmission layers.

9. The multi-layered signal multi-function data line of claim 1, wherein the multi-layered signal multi-function data line includes a plurality of the inner cores, and the metal transmission layer is coated on an outer side of the plurality of the inner cores.

10. A data transmission cable, comprising the multi-layered signal multi-function data line according to any one of claims 1 to 9, further comprising a coating layer,

wherein, the cladding layer is internally wrapped with 1 multi-layer signal multifunctional data line; alternatively, the first and second electrodes may be,

and a plurality of multi-layer signal multifunctional data wires are coated in the coating layer.

Technical Field

The invention relates to the technical field of data lines, in particular to a multi-layer signal multifunctional data line and a data transmission cable.

Background

Different data signals of the traditional data lines all need independent data lines to be used for transmitting data, if more required wire cores are needed in the types or functions of the data signals, the number of multi-welding-point wires of the wire cores is large, the process is complicated, the reliability is reduced, and if the signal lines in different forms are not sufficiently shielded, mutual interference can be generated. The signal is disordered, error codes are generated, communication is affected, particularly, the upper half wave cycle and the lower half wave cycle of the positive differential signal and the lower half wave cycle of the negative differential signal are insufficiently offset due to the twisted mode, the shielding effect, the relative distance deviation of the positive differential signal and the negative differential signal and other factors, and self-collapsing interference is generated. Therefore, the problem that the data line cannot achieve the expected communication effect in the data transmission process is caused.

Disclosure of Invention

The invention mainly aims to provide a multi-layer signal multifunctional data line and a data transmission cable, and aims to solve the problems that the use experience is influenced and the signal stability in the transmission process is influenced due to excessive wire cores and too thick wire diameters in the data transmission process.

In order to solve the above problems, the present invention provides a multi-layer signal multi-functional data line, which includes an internal core, a metal transmission layer, a metal shielding layer, and an insulating layer, wherein the internal core is used for transmitting data; the metal transmission layer is used for transmitting data, the metal transmission layer covers the outer side of the inner wire core, and the metal shielding layer covers the outer side of the metal transmission layer; the insulating layer is arranged between the metal transmission layer and the metal shielding layer.

In an optional embodiment, the inner wire core is a metal wire core, and an insulating layer is disposed between the metal wire core and the metal transmission layer.

In an alternative embodiment, the inner core is an optical fiber core.

In an optional embodiment, the optical fiber wire core is coated with a protective layer.

In an optional embodiment, the metal transmission layer comprises a light-reflecting conductive layer, and the light-reflecting conductive layer is sprayed on the outer side of the optical fiber core; alternatively, the first and second electrodes may be,

the metal transmission layer comprises a metal conducting layer, the metal conducting layer is coated on the outer side of the optical fiber wire core, and the insulating layer is arranged between the optical fiber wire core and the metal conducting layer.

In an optional embodiment, the metal conductive layer is a metal film or a metal wire or a metal paint, and the metal shielding layer is a metal film or a metal wire or a metal paint.

In an optional embodiment, the metal conductive layer is a plurality of parallel and straight-line metal wires, or a plurality of parallel and obliquely-wound metal wires, or a plurality of cross-woven metal wires; the metal shielding layer is a plurality of parallel and straight-line metal wires, or a plurality of parallel and obliquely-wound metal wires, or a plurality of cross-woven metal wires.

In an optional embodiment, the multilayer signal multifunctional data line includes a plurality of metal transmission layers, the plurality of metal transmission layers are arranged layer by layer in a direction away from the inner core, and the insulating layer is arranged between two adjacent metal transmission layers.

In an optional embodiment, the multi-layer signal multifunctional data line comprises a plurality of the inner cores, and the metal transmission layer covers the outer sides of the inner cores.

The invention also provides a data transmission cable, which comprises the multilayer signal multifunctional data line, and further comprises a coating layer,

wherein, the cladding layer is internally wrapped with 1 multi-layer signal multifunctional data line; alternatively, the first and second electrodes may be,

and a plurality of multi-layer signal multifunctional data wires are coated in the coating layer.

By providing a data transmission structure and a data line comprising the data transmission structure, the metal transmission layer can be used for transmitting data besides the internal wire core used for transmitting data. A plurality of data are transmitted through the multi-functional data line of multilayer signal, a lot of data transmission is not at the same time but time sharing, when the data signal is not transmitted in the time sharing transmission, the outer data layer forms the shielding protection to the inner data, and simultaneously, the inner and outer data layers can be used as the differential signal transmission line to simultaneously transmit positive and negative differential signals, the upper and lower half wave cycle of the positive and negative differential signals of the data transmission structure are offset sufficiently, and the data transmission structure has small interference to the signal transmission. Therefore, the invention solves the problem that signals of the data lines interfere with each other in the data transmission process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a multi-layer signal multi-function data line according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a multi-layer signal multi-function data line according to a second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a multi-layer signal multi-function data line according to a third embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a multi-layer signal multi-function data line according to a fourth embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a multi-layer signal multi-function data line according to a fifth embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a multi-layer signal multi-function data line according to a sixth embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a multi-layer signal multi-function data line according to a seventh embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a multi-layer signal multi-function data line according to an eighth embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a ninth embodiment of a multi-layer signal multi-function data line according to the present invention;

FIG. 10 is a schematic structural diagram of a multi-layer signal multi-function data line according to a tenth embodiment of the present invention;

FIG. 11 is a schematic structural diagram of an eleventh embodiment of a multi-layer signal multi-function data line according to the present invention;

FIG. 12 is a schematic structural diagram of a first embodiment of a data transmission cable according to the present invention;

FIG. 13 is a schematic structural diagram of a second embodiment of the data transmission cable of the present invention;

FIG. 14 is a schematic structural view of a third embodiment of a data transmission cable according to the present invention;

fig. 15 is a schematic structural diagram of a data transmission cable according to a fourth embodiment of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

With the popularization of 4K and 8K display technologies and the rise of device applications such as AV and VR, the amount of data required to be transmitted by a data line is also increasing. Our requirements for data transmission are also increasing. The data line is required to transmit large data volume and high transmission speed, and the transmitted signal is required to have stable quality, no loss, no distortion and no noise (low noise), and the data line is required to be thin, soft, long (long), heavy current and the like. Therefore, it is necessary to optimize and improve not only the original transmission method, but also the original structure. So as to better meet the increasing consumption demand and improve the consumption experience.

Referring to fig. 1 and 2, in order to solve the above problem, the present invention provides a multi-layer signal multi-function data line 10, where the multi-layer signal multi-function data line 10 includes an inner core 11, a metal transmission layer 12, a metal shielding layer 13, and an insulation layer 14, and the inner core 11 is used for transmitting data; the metal transmission layer 12 is used for transmitting data, the metal transmission layer 12 covers the outer side of the inner wire core 11, and the metal shielding layer 13 covers the outer side of the metal transmission layer 12; the insulating layer 14 is disposed between the metal transmission layer 12 and the metal shielding layer 13.

Conventional data lines, such as coaxial lines, shielded lines, twisted pairs, etc., have a single-layer transmission structure. And the upper and lower half-cycle waveforms of the positive and negative differential signals of the data line with the single-layer transmission structure are not sufficiently offset. The multi-layer signal multi-function data line 10 of the present invention is an entangled differential transmission structure with a mutual full cladding. I.e. the metal transmission layer 12 has the function of transmitting signals in addition to the inner wire core 11. The structure can sufficiently offset the upper and lower half-cycle waveforms of the positive and negative differential signals, the self-generated interference is less, the signal attenuation in the transmission process is greatly reduced, and the generation of error codes in the high-speed signal transmission process is reduced. Meanwhile, the metal shield layer 13 is used for grounding. This will also be very well shielded from external disturbances. The method is more beneficial to long-distance, lossless, low-noise, undistorted and stable transmission. And the insulating layer 14 is disposed between the metal transmission layer 12 and the metal shielding layer 13 to avoid the mutual influence therebetween. Meanwhile, the metal transmission layer 12 has a conductive function besides transmitting signals, and can be used for carrying current in a transmission process.

Thus, the present invention provides a multi-layer signal multi-functional data line 10, and the multi-layer signal multi-functional data line 10 can reduce the electromagnetic interference from the outside and the interference generated in the transmission process, so as to greatly reduce the signal attenuation in the transmission process and reduce the error code generation in the high-speed signal transmission process. The device is beneficial to high-speed, large-capacity, long-distance, lossless, low-noise, undistorted and stable transmission of various data. Meanwhile, compared with the data line in the prior art, the multi-layer signal multifunctional data line 10 is wrapped in multiple layers, is compact in structure, and convenient to use, carry and transport, and the whole line becomes thinner and softer.

The inner core 11 may be a metal core 11a or an optical fiber core 11 b. The metal wire core 11a has a conductive function in addition to transmitting signals. Since the properties of both the metal core 11a and the optical fiber core 11b are different, we discuss them in classification. In an alternative embodiment, the inner wire core 11 is a metal wire core 11a, and an insulating layer 14 is disposed between the metal wire core 11a and the metal transmission layer 12. Since the metal core 11a is itself electrically conductive, it is avoided that both the metal core 11a and the metal transmission layer 12 interact. In the process of processing the multi-layer signal multifunctional data line 10 with the metal wire core 11a, the first insulating layer 141 is first coated on the metal wire core 11a in an insulating manner, and then the metal transmission layer 12, the second insulating layer 142 and the metal shielding layer 13 are sequentially coated. The wire diameter and the thickness of the insulating layer 14 can be set according to actual requirements. Meanwhile, specific processing manner and material of the insulating layer 14 are not particularly limited. Only the insulating function is needed.

Referring to fig. 2 and 10, in an alternative embodiment, the inner core 11 is an optical fiber core 11 b. Thus, the metal transmission layer 12 and the optical fiber core 11b can be used for transmitting data. The multi-layer signal multifunctional data line 10 can be used as a hybrid optical fiber. Large data, high rate differential signals (e.g., HDMI2.1) that have been converted to optical signals are typically transmitted using optical fibers. The optical fiber has large transmission capacity, high speed and less self interference, and can not be interfered by external electromagnetic interference. Therefore, the signal attenuation in the transmission process is greatly reduced, and the generation of error codes in the high-speed signal transmission process is reduced. The method is more beneficial to long-distance, lossless, low-noise, undistorted and stable transmission.

Referring to fig. 10, the optical fiber core 11b may be a bare optical fiber or a protective layer 15 optical fiber with a protective layer 15 covering the outer side thereof. Here we do not limit the specific type of fiber. The protective layer 15 is used to protect the optical fiber to extend the service life of the optical fiber core 11 b.

In an alternative embodiment, the metal transmission layer 12 includes a light-reflecting conductive layer 122, and the light-reflecting conductive layer 122 is sprayed on the outer side of the optical fiber core 11 b. Alternatively, the metal transmission layer 12 includes a metal conductive layer 121, the metal conductive layer 121 covers the outer side of the optical fiber core 11b, and the insulating layer 14 is disposed between the optical fiber core 11b and the metal conductive layer 121. Unlike the metal core 11a, the optical fiber core 11b has more options for the form of the metal transmission layer 12. When the optical fiber core 11b is a bare optical fiber, the light-reflecting conductive layer 122 may be disposed on the surface of the optical fiber core 11b by plating or spraying. The reflective conductive layer 122 has both a signal loading function and a current carrying function (data current carrying, which can also be understood as a dc carrier). Thus, not only can other signals be transmitted simultaneously, but also more power output capacity and selection can be provided. In addition, for the multilayer signal multifunctional data line 10 having the optical fiber core 11b, a structure similar to that of the multilayer signal multifunctional data line 10 having the metal core 11a may also be employed. Namely, the metal conductive layer 121 is used as the metal transfer layer 12. This structure can be used for an optical fiber having the protective layer 15.

In another embodiment, the multi-layered signal multi-function data line 10 includes a multi-layered metal transmission layer 12,the metal transmission layer 12 adjacent to the optical fiber core 11b is a light reflecting conductive layer 122, and the rest of the metal transmission layers 12 are metal conductive layers 121. The metal conductive layer 121 and the metal wire core 11a adopt the metal shielding layer 13 and the metal transmission layer 12 with the same structure. If the current carrying is large, a metal conductive layer 121 located at the outer layer and far away from the optical fiber core 11b can be used to transmit the current. To avoid damage to the optical fiber by heat generated during current transmission. Further, when the multi-layer signal multifunctional data line 10 includes a plurality of metal transmission layers 12, the metal transmission layers 12 thereof include a first transmission layer and a second transmission layer, wherein the first transmission layer and the second transmission layer are disposed at an interval, and one of the first transmission layers is closest to the inner core 11. During use, D₀+ connecting the internal core and the second transmission layer, D₀-connecting said first transport layers and vice versa. So arranged, D₀+ and D₀Sufficient cancellation occurs when the multi-layer signal multifunctional data line 10 has a better transmission effect.

Referring to fig. 5 to 8, in an alternative embodiment, the metal conductive layer 121 is a metal film or a metal wire or a metal paint, and the metal shielding layer 13 is a metal film or a metal wire or a metal paint. In particular, other metal materials with good conductivity and low resistivity also meet the requirements. The metal conductive layer 121 and the metal shielding layer 13 may be attached to the upper insulating layer 14 by plating or spraying. It is also possible that a metal film or a metal wire is adhered to the insulating layer 14 by glue.

Referring to fig. 5 to 8, in an alternative embodiment, the metal conductive layer 121 is a plurality of parallel metal wires in a straight row, or a plurality of parallel metal wires in an oblique winding, or a plurality of metal wires in a cross weaving; the metal shielding layer 13 is a plurality of parallel and straight-line metal wires, or a plurality of parallel and obliquely-wound metal wires, or a plurality of cross-woven metal wires. The metal line may form the metal conductive layer 121 and the metal shielding layer 13 in a variety of different ways. Further, the metal wires may be densely arranged in a plurality of strands or sparsely arranged in a few strands. It only needs to play the role of transmission or grounding shield. Meanwhile, the position of the metal wire can be adjusted by adopting various weaving arrangement forms. When the multi-layer signal multi-function data line 10 has a plurality of metal transmission layers 12, the different metal transmission layers 12 may take different forms, and may also take the same form. Specifically, the weave arrangement of the metal wires or the materials constituting the metal conductive layer 121 and the metal shielding layer 13 are determined according to the characteristics of the data signals actually required for transmission in actual use. In which, fig. 5 to 7 are the metal wires which are parallelly arranged in a straight line, parallelly and obliquely wound and crosswise woven in sequence. And fig. 8 is a schematic view of a metal thin film as the metal transmission layer 12.

Referring to fig. 9, in an alternative embodiment, the multi-layer signal multifunctional data line 10 includes a plurality of metal transmission layers 12, the plurality of metal transmission layers 12 are disposed layer by layer in a direction away from the inner core 11, and the insulating layer 14 is disposed between two adjacent metal transmission layers 12. The number of the metal transmission layer 12 may be one layer or a plurality of layers. Taking the multi-layer signal multi-function data line 10 with two metal transmission layers 12 as an example, the multi-layer signal multi-function data line is sequentially provided with an inner core 11, a first insulating layer 141, a first metal transmission layer 12a, a second insulating layer 142, a second metal transmission layer 12b, a third insulating layer 143 and a metal shielding layer 13 from inside to outside.

Referring to fig. 3 to 4, in another alternative embodiment, the multi-layer signal multifunctional data line 10 includes a plurality of inner cores 11, and the metal transmission layer 12 is coated outside the inner cores 11. Either a single internal core 11 or multiple internal cores 11 may be employed. Because high frequency signal has the skin effect of driving, the frequency is higher, and is greater to the surface area requirement of sinle silk, and the circumference is bigger promptly, and when adopting metal sinle silk 11a, the surface area of many inside sinle silks 11 is big than the surface area of single inside sinle silk 11, and the multi-functional data line of multilayer signal 10 that adopts many inside sinle silks 11 has better transmission effect.

Referring to fig. 12 to 15, the present invention further provides a data transmission cable, which includes the above-mentioned multi-layer signal multifunctional data line 10, and further includes a coating layer 20, wherein 1 multi-layer signal multifunctional data line 10 is coated in the coating layer 20; alternatively, a plurality of the multi-layer signal multifunctional data lines 10 are covered in the covering layer 20. Specifically, the present invention relates to a multilayer signal multifunctional data line 10 and a data transmission cable using the multilayer signal multifunctional data line 10. The number of the metal transmission layers 12, the number of the inner wire cores 11 and the number of the multi-layer signal multifunctional data lines 10 in the data transmission cable can be one or more, and various different composition forms can be obtained. The design can be carried out according to the actual requirement.

Further, the data transmission cable and the multi-layer signal multifunctional data line 10 are designed according to the required carrying capacity. Specifically, the number, diameter, material of the inner wire cores 11 or the thickness, material or density of the woven mesh of the metal transmission layer 12 can be configured according to actual needs, so as to achieve the purpose of matching resistance or matching conduction area. The transmission current mainly considers the equivalent resistance, so that the bearing capacity of the cable is judged, and the transmission distance and quality influencing analog signals (CVBS, AHD and the like) are mainly the equivalent resistance of the wire core except interference factors. The transmission distance and quality influencing common low-frequency digital signals (I2C, TTL232, RS485 and the like) are mainly equivalent resistance of the wire core besides interference factors. The pair of differential cables of low-rate differential signals (USB, TYPE-C, HDMI, LVDS) are matched by equivalent resistance. Differential signals with high speed (single channel (one pair of differential) is larger than 1.5Gbps) have more obvious skin-repelling effect (high-frequency signals are transmitted on the surface of the cable), so that the larger the surface area of the cable is, the more the transmission of the high-frequency signals is facilitated. Matching requires more consideration of surface area. Taking the parallel and straight-line type metal transmission layer 12 or the metal shielding layer 13 as an example, the following calculation examples are given: equivalent resistance (ESR), area (S), length (L), conductivity coefficient (delta) of the material, diameter (D), radius (r) and number of wire cores (n). Wherein, ESR is n × pi r2 × L, and S is n × pi D × L. The specific structure of the multi-layer signal multifunctional data line 10 can be designed according to the above formula, and of course, the unit length can also be sampled, and after actual measurement, the length is multiplied to determine the required data parameters.

The specific structure of the multi-layer signal multifunctional data line 10 refers to the above embodiments, and since the data transmission cable adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here. The multi-layer signal multifunctional data line 10 and the data transmission cable provided by the invention can be widely used for various types of signal transmission. Such as analog signals (CVBS, AHD), common digital signals, serial digital signals (TTL232, RS485), differential signals (USB, HDMI, LVDS), optical signals, etc., and signals in various carrier forms and compounded with power can also be transmitted.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.