High-frequency data wires, high-frequency data harnesses and high-frequency data cables

Abstract

The present invention discloses a high-frequency data wire, a high-frequency data wire harness and a high-frequency data cable, comprising a data transmission unit, an intermediate protective body and a light-absorbing tape, wherein the data transmission unit comprises at least one data transmission core wire; the intermediate protective body is coated on the outer side wall of the data transmission unit; the light-absorbing tape is attached to the side of the intermediate protective body away from the data transmission unit. The present invention is a high-frequency data wire, a high-frequency data wire harness and a high-frequency data cable, and by arranging a light-absorbing tape on the intermediate protective layer, reflection can be prevented during laser processing, so that the high-frequency data wire can be cut and processed conveniently, and the stability of the wire is improved.

Description

Technical Field

[0001] The present invention relates to the field of high-frequency data transmission wires, and in particular to a high-frequency data wire, a high-frequency data wire harness and a high-frequency data cable. Background Art

[0002] High-frequency line (high-frequency signal line) is a connecting line for high-frequency signal transmission. High-frequency line is generally a shielded line. The signal is lost due to the impedance of the conductor during transmission. It is widely used. Common cable TV lines are a type of high-frequency line. Conditions for use of high-frequency line: The operating temperature of high-frequency cable is allowed to be in the range of -40℃~+65℃, relative humidity: 98[%] at a temperature of +40℃, and the laying temperature during installation is not lower than -15℃. Field of use of high-frequency line: High-frequency cable is suitable for transmitting radio frequency signals in wireless electronic devices related to radio communication equipment and electronic devices using similar technologies.

[0003] In existing high-frequency data cables, a hot-melt Mylar layer is generally coated on the outermost layer, and the hot-melt Mylar layer is a transparent tape. However, this transparent tape is coated on the metal shielding layer. As is known to all, the metal shielding layer is generally a composite tape of metal and Mylar, and the metal shielding layer is arranged on the Mylar layer, so that the metal shielding layer is arranged outward. During the laser processing, the metal shielding layer is prone to reflection, resulting in poor laser effect, which is not conducive to the processing of data cables and reduces the stability of the cables. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a high-frequency data wire, a high-frequency data wire harness and a high-frequency data cable, which can prevent the occurrence of reflection during laser processing, facilitate the cutting and processing of the high-frequency data wire, and improve the stability of the wire.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A high-frequency data cable, comprising:

[0007] A data transmission unit, the data transmission unit comprising at least one data transmission core line;

[0008] an intermediate protective body, the intermediate protective body covering the outer side wall of the data transmission unit; and

[0009] A light-absorbing tape is attached to a side of the intermediate protective body away from the data transmission unit.

[0010] In one embodiment, the light-absorbing tape is a colored tape.

[0011] In one embodiment, the high-frequency data wire further includes a protective tape, which is coated on the outer side wall of the light-absorbing tape.

[0012] In one embodiment, the protective tape includes at least one hot-melt Mylar layer, and the hot-melt Mylar layer is coated on the outside of the light-absorbing tape.

[0013] In one embodiment, the hot-melt Mylar layer is a colored Mylar layer, and the colored Mylar layer is coated outside the light-absorbing band.

[0014] In one of the embodiments, the data transmission unit includes two data transmission core wires, the two data transmission core wires are arranged parallel to each other, and the intermediate protective body is covered on the outer side walls of the two data transmission core wires.

[0015] In one embodiment, the high-frequency data wire further includes at least one ground wire pair, and the ground wire pair is arranged on the outer side wall of the intermediate protective body.

[0016] In one embodiment, the intermediate protective body includes an inner protective layer and a metal shielding layer, the inner protective layer is coated on the outer wall of the data transmission unit, the metal shielding layer is coated on the inner protective layer, and the light-absorbing tape is attached to the side of the metal shielding layer away from the inner protective layer.

[0017] The present invention also provides a high-frequency data wire harness, comprising the high-frequency data wire described in any one of the above items, the high-frequency data wire harness also comprising an insulating sheath, the insulating sheath covering the outer side wall of the high-frequency data wire, wherein two high-frequency data wires are provided, and the outer side walls of the two high-frequency data wires are arranged in contact with each other.

[0018] The present invention also provides a high-frequency data cable, including the high-frequency data harness described above, wherein the high-frequency data cable also includes an outer sheath and a plurality of high-frequency data wires, wherein the high-frequency data wires are connected end to end in sequence to form an installation cavity, wherein the high-frequency data harness is accommodated in the installation cavity, and an outer side wall of each high-frequency data wire is attached to an outer side wall of the high-frequency data harness, and the outer sheath covers the outside of each high-frequency data wire.

[0019] The advantages and beneficial effects of the present invention compared to the prior art are as follows:

[0020] The present invention relates to a high-frequency data wire, a high-frequency data wire harness and a high-frequency data cable. By arranging a light-absorbing tape on the intermediate sheath, reflection can be prevented during laser processing, so that the cutting and processing of the high-frequency data wire is convenient and the stability of the wire is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic structural diagram of a high-frequency data cable according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic structural diagram of a high-frequency data harness according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic structural diagram of a high-frequency data cable according to one embodiment of the present invention;. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] See also Figure 1A high-frequency data wire 10 includes: a data transmission unit 100, an intermediate protective body 200 and a light-absorbing tape 300. It should be noted that the data transmission unit 100 is used to transmit high-frequency data or high-frequency signals; the intermediate protective body 200 is used to wrap the data transmission unit to protect it; the light-absorbing tape 300 is used to achieve an anti-reflection effect. When laser cutting is required, the laser light is irradiated onto the light-absorbing tape, and no reflection occurs, which facilitates laser cutting and quickly cuts the protection and shielding components outside the data transmission unit.

[0029] See also Figure 1 The data transmission unit 100 includes at least one data transmission core line 110. It should be noted that the data transmission core line 110 is used to transmit high-frequency data.

[0030] See also Figure 1 The intermediate guard 200 is coated on the outer wall of the data transmission unit. It should be noted that the intermediate guard 200 can protect each data transmission core wire in the data transmission unit, and can also improve the structural stability of each data transmission core wire, thereby improving the stability and effectiveness of transmission.

[0031] See also Figure 1 The light absorbing tape 300 is attached to the side of the intermediate protective body away from the data transmission unit. In this embodiment, the light absorbing tape is a colored tape.

[0032] It can be understood that during the processing of the wire, the wire needs to be laser processed and then the internal core wire is peeled out. During the laser processing, if there is reflection on the surface of the wire, that is, when the radiation shines on the outermost tape of the wire, the light will be reflected away, so that the shielding layer under the outer tape cannot be cut, or cannot be completely cut off, resulting in burrs at the ports that have not been cut.

[0033] Therefore, in this embodiment, a layer of light-absorbing tape is attached to the middle protective body. When laser irradiation is required, the composite tape of metal and Mylar will reflect the laser light instead of the transparent outer tape in the prior art. That is, by adopting colored light-absorbing tape, it can be ensured that in the normal laser process, the core wire is exposed after the laser irradiation. After the laser irradiation, all the tapes can be taken off and then the skin can be opened with a knife. In this way, all the tapes can be taken off at one time, and the core wire will not be burned by the secondary laser irradiation. The protection effect on the core wire is improved, thereby ensuring the stability and reliability of the wire.

[0034] In this way, by providing a light-absorbing tape on the middle sheath, reflection can be prevented during laser processing, which facilitates the cutting and processing of high-frequency data cables and improves the stability of the cables.

[0035] It should be noted that the high-frequency data cable also includes a protective tape 400, which is coated on the outer side wall of the light-absorbing tape 300. Specifically, the protective tape 400 includes at least one layer of hot-melt Mylar layer, which is coated on the outside of the light-absorbing tape. In this embodiment, the protective tape includes two layers of hot-melt Mylar layers, which are sequentially stacked and coated on the outside of the light-absorbing tape. In this way, the protective tape is used to protect the structure of the entire cable from damage and enhance the structural stability of the cable.

[0036] It should also be noted that the hot-melt Mylar layer is a colored Mylar layer, that is, it can also be a transparent colored Mylar layer, and the colored Mylar layer is coated outside the light-absorbing band. In this way, by providing a colored Mylar layer, on the one hand, the recognition of the wire can be increased, and on the other hand, the degree of light reflection can be reduced, further improving the laser effect.

[0037] In another embodiment, the protective tape includes two layers of hot-melt Mylar layers, the light-absorbing tape is arranged between the two layers of the hot-melt Mylar layers, and the upper and lower sides of the light-absorbing tape are respectively attached to the outer walls of the two layers of the hot-melt Mylar layers. In this way, the light-absorbing effect of the light-absorbing tape can be ensured, thereby ensuring the effect of the laser. It should also be noted that the protective tape includes multiple layers of hot-melt Mylar layers, and the light-absorbing tape is arranged between two of the hot-melt Mylar layers. In this way, it can be ensured that there is no luminescence phenomenon during laser irradiation, thereby improving the laser effect.

[0038] It can be understood that the structure of existing high-frequency wires adopts solid insulation and a single ground wire parallel longitudinal package. The solid insulation causes the overall size of the wire to be large, which is inconvenient for customers to process. In addition, the single ground wire structure has an asymmetric wire structure, the wire performance is not very good, and it also needs to be bent during the processing process, which brings great inconvenience to the processing, reduces the processing efficiency, and reduces the production capacity.

[0039] Based on this, in this embodiment, please refer to Figure 1 The data transmission unit 100 includes two data transmission cores 110, which are arranged parallel to each other, and the intermediate shield is coated on the outer side walls of the two data transmission cores. It should be noted that the data transmission cores 110 are used to transmit signals and data.

[0040] Furthermore, in one of the data transmission core wires, the data transmission core wire 110 includes a central conductor 111 and an insulating sheath 112, wherein the insulating sheath is coated on the outside of the central conductor, and the intermediate sheath is coated on the outside of the insulating sheath. It should be noted that the central conductor is used to transmit high-frequency data; the insulating sheath is used to coat the central conductor to play a protective role, and in this embodiment, the insulating sheath adopts a foamed insulating layer, so that the size of the wire is smaller and the high-frequency performance is better.

[0041] See also Figure 1 , the high-frequency data wire also includes at least one group of ground wire pairs 500, and the ground wire pairs 500 are arranged on the outer wall of the intermediate guard. In this embodiment, in a group of ground wire pairs 500, the ground wire pairs 500 include two ground wires 510, and the two ground wires are respectively arranged on both sides of the data transmission unit. The two ground wires are symmetrically arranged outside the intermediate guard, and the two ground wires are tightly attached to the outer wall of the intermediate guard. The ground wire is used to ground the wire. It should be noted that the two ground wires are respectively arranged on both sides of the data transmission core wire, so as to ensure the symmetry of the wire, ensure the transmission rate of the wire, and improve the reliability of data transmission.

[0042] See also Figure 1 The intermediate protective body 200 includes an inner protective layer 210 and a metal shielding layer 220. The inner protective layer is coated on the outer wall of the data transmission unit, the metal shielding layer is coated on the inner protective layer, and the light absorbing tape is attached to the side of the metal shielding layer away from the inner protective layer. Furthermore, the inner wall of the inner protective layer 210 is attached to the outer wall of the insulating protective body 112, and the metal shielding layer 220 is longitudinally coated outside the inner protective layer 210.

[0043] It should be noted that the inner protective layer 210 is used to protect the data transmission unit. At the same time, by setting the foamed insulation layer and the inner protective layer, under the same performance, compared with the pure solid structure in the prior art, the size is smaller and the high-frequency performance is better; the metal shielding layer 220 is used to cover the entire inner protective layer, so that the structure of the inner protective layer is more stable, and thus the structure of the core pair is more stable.

[0044] Furthermore, the protective tape is wrapped around the metal shielding layer and the two ground wires. In this way, by wrapping the metal shielding layer around the inner protective layer, the two ground wires are fixed in parallel to the outer wall of the metal shielding layer through one or two layers of tape, so that the transmission performance can meet the requirements of high frequency (≧25GHz).

[0045] Specifically, the protective tape is spirally wound around the metal shielding layer and the two ground wires in a wrapping manner. In this way, by wrapping the protective tape around the ground wire and the metal shielding layer, the physical structural stability and electrical stability of the wire at high frequencies (≧25GHz) can be ensured.

[0046] In this way, by arranging a foamed insulation layer outside the central conductor and an inner sheath wrapped outside the insulating sheath, compared with the pure solid structure in the prior art, the size is smaller and the high-frequency performance is better; by arranging a double ground wire structure, the two ground wires are symmetrically arranged, so that the high-frequency transmission line will not cause poor performance problems due to asymmetry on both sides, and it can also facilitate the processing and packaging of the high-frequency transmission line, and at the same time make the structural stability of the high-frequency transmission line better. It should also be noted that by arranging a metal shielding layer, an outer layer of tape and two ground wires, the transmission performance can also meet the requirements of high frequency (≧25GHz).

[0047] It should also be noted that the insulating sheath is a foamed insulating layer, and the foamed insulating layer is coated on the outside of the central conductor. In this way, the foamed insulating layer is a wire made of foam cells, and the foamed and solid inner sheath replaces the pure solid structure, so that the size is smaller and the high-frequency performance is better.

[0048] See also Figure 2 On the basis of the above-mentioned single high-frequency transmission parallel line pair, when two high-frequency transmission parallel line pairs are needed, in order to achieve different transmission efficiency and usage conditions, the present invention also provides a high-frequency data wire harness 20, including the high-frequency data wire 10 described in any one of the above items, the high-frequency data wire harness 20 also includes an insulating sheath 21, the insulating sheath is coated on the outer side wall of the high-frequency data wire, wherein the high-frequency data wire is provided with two, and the outer side walls of the two high-frequency data wires are arranged in contact with each other.

[0049] The insulating sheath 21 is coated on the outside of the two high-frequency data wires 10, and the insulating sheath 21 is spirally wound on the outside of the two high-frequency data wires 10. It should be noted that the insulating sheath 21 is used to coat the two high-frequency data wires, and makes the structure of the high-frequency data wire harness more stable, makes the structure of the high-frequency data wire harness symmetrical, facilitates processing, and improves the structural stability and reliability of the wires.

[0050] See also Figure 2 The high-frequency data harness 20 further includes a shielding braided tape 22, which is wrapped around the insulating sheath 21, and the inner side wall of the shielding braided tape 22 is tightly fitted with the outer side wall of the insulating sheath 21. Thus, by providing the shielding braided tape 22, the structural stability can be further enhanced, and the parallel line pairs can also be protected, thereby playing a protective role.

[0051] See also Figure 2 The high-frequency data harness 20 further includes an outer sheath 23, which is placed outside the shielding braided tape 22, and the inner wall of the outer sheath 23 is tightly fitted with the outer wall of the shielding braided tape 22. In this way, the outer sheath 23 is provided to protect the shielding braided tape, thereby protecting the entire high-frequency data harness 20.

[0052] In another embodiment, when multiple high-frequency transmission parallel wire pairs 10 are used in the wiring harness to realize the transmission of different high-frequency data and meet different interfaces and actual needs, therefore, in one embodiment, please refer to Figure 3 The present invention also provides a high-frequency data cable 30, including the high-frequency data harness 20 described above, the high-frequency data cable 30 also includes an outer sheath 31 and a plurality of high-frequency data wires 10, each of the high-frequency data wires is connected end to end in sequence to form an installation cavity, the high-frequency data harness is accommodated in the installation cavity, and the outer side wall of each of the high-frequency data wires is attached to the outer side wall of the high-frequency data harness, and the outer sheath is coated on the outside of each of the high-frequency data wires.

[0053] Each of the high-frequency data wires is used to be coated on the outside of the high-frequency data harness to achieve high-frequency data transmission; the outer sheath 31 is coated on the outside of each of the high-frequency data wires and is used to wrap around the entire harness to improve structural stability and protect the entire cable.

[0054] In this embodiment, six high-frequency data wires are provided, that is, six high-frequency data wires are wound around the high-frequency data cable 30, that is, six high-frequency data wires are wound around the outside of the high-frequency transmission harness, thereby realizing a high-speed transmission harness of eight high-frequency data wires.

[0055] The high-frequency data cable 30 further includes a winding kit 32, wherein the winding kit 32 includes a first wrapping tape 32a and a second wrapping tape 32b, wherein the first wrapping tape is spirally wound around each of the high-frequency data wires, and the second wrapping tape is wrapped around the first wrapping tape. Thus, by providing two layers of wrapping tapes to be wound around each of the high-frequency data wires, the structural stability of the wiring harness can be improved.

[0056] See also Figure 3 The outer sheath 31 includes an outer shielding layer 31a and an insulating jacket 31b. The outer shielding layer 31a is coated on the outer side wall of the second wrapping tape, and the insulating jacket is placed on the outer shielding layer. It should be noted that the outer shielding layer 31a is used for shielding and can also strengthen the entire structure. The insulating jacket 31b is used for protection.

[0057] See also Figure 3 The high-frequency transmission harness 20 further includes a filling layer 24, which is embedded between the outer side walls of the two high-frequency data wires and the inner side walls of the insulating sheath. Thus, by providing the filling layer, when the wire is squeezed, the internal wire core structure will not be deformed, further strengthening the structural strength of the harness and improving the structural stability of the harness.

[0058] The advantages and beneficial effects of the present invention compared to the prior art are as follows:

[0059] The present invention relates to a high-frequency data wire, a high-frequency data wire harness and a high-frequency data cable. By arranging a light-absorbing tape on the intermediate sheath, reflection can be prevented during laser processing, so that the cutting and processing of the high-frequency data wire is convenient and the stability of the wire is improved.

[0060] The above-mentioned embodiments only express several embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A high-frequency data wire, characterized in that: include: A data transmission unit, the data transmission unit comprising at least one data transmission core line; An intermediate protective body, the intermediate protective body covering the outer side wall of the data transmission unit; and A light-absorbing tape, the light-absorbing tape being attached to a side of the intermediate guard away from the data transmission unit; The light-absorbing tape is a colored tape; the high-frequency data cable also includes a protective tape, which is coated on the outer side wall of the light-absorbing tape; the protective tape includes at least one layer of hot-melt Mylar layer, which is coated on the outside of the light-absorbing tape; the hot-melt Mylar layer is a colored Mylar layer, which is coated on the outside of the light-absorbing tape.

2. The high-frequency data wire according to claim 1, characterized in that: The data transmission unit comprises two data transmission core wires, the two data transmission core wires are arranged parallel to each other, and the intermediate protective body is coated on the outer side walls of the two data transmission core wires.

3. The high-frequency data wire according to claim 1, characterized in that: The high-frequency data wire also includes at least one set of ground wire pairs, and the ground wire pairs are arranged on the outer side wall of the intermediate protective body.

4. The high-frequency data wire according to claim 1, characterized in that: The intermediate protective body includes an inner protective layer and a metal shielding layer. The inner protective layer is coated on the outer wall of the data transmission unit, the metal shielding layer is coated on the inner protective layer, and the light-absorbing tape is attached to the side of the metal shielding layer away from the inner protective layer.

5. A high-frequency data harness, characterized in that: The high-frequency data wire comprises the high-frequency data wire according to any one of claims 1 to 4, wherein the high-frequency data wire harness further comprises an insulating sheath, wherein the insulating sheath is coated on the outer side wall of the high-frequency data wire, wherein two high-frequency data wires are provided, and the outer side walls of the two high-frequency data wires are arranged in contact with each other.

6. A high-frequency data cable, characterized in that: The high-frequency data cable comprises the high-frequency data harness as described in claim 5, wherein the high-frequency data cable further comprises an outer sheath and a plurality of high-frequency data wires, wherein the high-frequency data wires are connected end to end in sequence to form a mounting cavity, the high-frequency data harness is accommodated in the mounting cavity, and the outer side walls of the high-frequency data wires are attached to the outer side walls of the high-frequency data harness, and the outer sheath is wrapped around the outside of the high-frequency data wires.

Images