CN215377054U

CN215377054U - USB4 coaxial cable for high-frequency data transmission

Info

Publication number: CN215377054U
Application number: CN202121860573.3U
Authority: CN
Inventors: 叶江星; 梁海红; 冯浩; 杨文平; 肖昊东
Original assignee: Huizhou Desan Wire Co ltd
Current assignee: Huizhou Desan Wire Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2021-12-31
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a USB4 coaxial cable for high-frequency data transmission, which comprises a core wire set, a shielding layer and an outer sheath, wherein the shielding layer is coated on the core wire set; the cable core group comprises eight inner core groups, cable cores, electronic wires and first nylon wires, the cable cores are uniformly distributed around the inner core groups and take the inner core groups as centers, gaps between every two cable cores are filled with the electronic wires and the first nylon wires, and the electronic wires and the first nylon wires are filled in a staggered mode. The eight cable cores are uniformly distributed around the inner core group, so that the eight cable cores keep the same central shaft, the uniform transmission of signals is ensured, the signal transmission performance is superior, meanwhile, the electronic wires are uniformly distributed among the eight cable cores, the whole cable is more round after being twisted, the structure is tighter, and the bending resistance is increased; in addition, the shielding layer can reduce the influence of external signals on internal signal transmission, and ensure the high-speed stability of high-frequency signal transmission.

Description

USB4 coaxial cable for high-frequency data transmission

Technical Field

The utility model relates to the technical field of wire cables, in particular to a USB4 coaxial cable for high-frequency data transmission.

Background

In recent years, high frequency data transmission has attracted more and more attention with the popularization of electronic products. Similarly, as technology advances, the transmission standard of USB is gradually developed, and is upgraded to USB4, and USB4 is a protocol specification related to the transmission performance and performance of USB, and USB4 can be understood as "generation 4" of this specification.

With the development of the USB4, the corresponding high-frequency data transmission wire cable is upgraded and matched therewith, but the existing high-frequency data transmission wire cable still cannot meet the speed requirement of electronic products, and the application range is limited, and cannot meet the market use requirement, so a new high-frequency data transmission wire cable needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a USB4 coaxial cable for high-frequency data transmission, which has excellent transmission performance and good shielding effect.

In order to solve the above technical problems, the present invention can be implemented by adopting the following technical scheme:

a USB4 coaxial cable for high-frequency data transmission comprises a core wire set, a shielding layer and an outer sheath, wherein the shielding layer is coated on the core wire set, and the outer sheath is coated on the shielding layer;

wherein, heart yearn group includes inner core group, cable core, electron line and first nylon yarn, the cable core is provided with eight to inner core group is the center, and evenly distributed is filled with electron line and first nylon yarn around inner core group, the gap intussuseption between per two cable cores, and electron line and first nylon yarn dislocation are filled.

In one embodiment, the inner core group is formed by twisting a power line, a twisted-pair signal line and a plurality of second nylon wires, and the twisted-pair signal line is formed by twisting two USB2.0 signal transmission lines.

In one of them embodiment, the cable core includes FEP insulated core, copper line winding layer, metal copper foil area and colored polyester area, the outer wall in FEP insulated core is twined on copper line winding layer, the outer wall in copper line winding layer is wrapped in to the metal copper foil area, colored polyester area then wraps in the outer wall in metal copper foil area.

In one embodiment, the shielding layer includes a conductive PE tape wrapped around the core wire set and two layers of metal conductors sequentially wrapped around the conductive PE tape.

In one embodiment, the outer sheath is made of TPE or PVC or TPU.

The utility model has the beneficial effects that: according to the USB4 coaxial cable for high-frequency data transmission, the eight cable cores are uniformly distributed around the inner core group, so that the eight cable cores keep the same central shaft, and uniform signal transmission is ensured, and therefore, the signal transmission performance is superior, meanwhile, the electronic wires and the first nylon wires are uniformly distributed among the eight cable cores, so that the whole cable is more round after being twisted, the structure is tighter, and the integral bending resistance is increased; in addition, the influence of external signals on internal signal transmission can be effectively reduced through the shielding layer, and therefore high-speed stability of high-frequency signal transmission is guaranteed.

Drawings

FIG. 1 is a cross-sectional view of a USB4 coaxial cable for high frequency data transmission in accordance with the present invention;

FIG. 2 is a cross-sectional view of the USB4 coaxial cable inner core set for high frequency data transmission according to the present invention;

fig. 3 is a schematic cross-sectional view of a cable core of the USB4 coaxial cable for high-frequency data transmission according to the present invention.

As shown in the attached drawings: 100. a core wire set; 110. an inner core group; 111. a power line; 112. twisted-pair signal lines; 113. a second nylon wire; 120. a cable core; 121. an FEP insulated core wire; 122. a copper wire winding layer; 123. a copper foil strip; 124. a colored polyester tape; 130. an electron beam; 140. a first nylon wire; 200. a shielding layer; 210. a conductive PE tape; 220. a metal conductor; 300. an outer sheath.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a USB4 coaxial cable for high frequency data transmission includes a core wire set 100, a shielding layer 200, and an outer sheath 300, wherein the shielding layer 200 is wrapped around the core wire set 100, and the outer sheath 300 is wrapped around the shielding layer 200; the core wire group 100 comprises an inner core group 110, cable cores 120, electronic wires 130 and first nylon wires 140, eight cable cores 120 are arranged and are uniformly distributed around the inner core group 110 by taking the inner core group 110 as a center, gaps between every two cable cores 120 are filled with the electronic wires 130 and the first nylon wires 140, the electronic wires 130 and the first nylon wires 140 are filled in a staggered mode, the inner core group 110 is formed by twisting a power line 111, a pair-twisted signal wire 112 and a plurality of second nylon wires 113, and the pair-twisted signal wire 112 is formed by twisting two USB2.0 signal transmission lines.

Specifically, the cable in this embodiment includes a core wire set 100, a shielding layer 200 and an outer sheath 300, where the core wire set 100 includes an inner core set 110, cable cores 120 and an electronic wire 130, the inner core set 110 is formed by twisting a power wire 111, a twisted-pair signal wire 112 and a plurality of second nylon wires 113, and at the same time, eight cable cores 120 are provided, and eight cable cores 120 are centered on the inner core set 110, and are annularly arrayed at the edge of the inner core set 110, so that the eight cable cores 120 maintain the same central axis, and form 4 sets to perform differential signals, and complete differential signal Attenuation, differential to Common mode (differential-to-Common mode) and Delay skew together; in addition, the sub-wires 130 are filled in the gap between every two cable cores 120, so that the cable is more round and more compact in structure after being twisted, and meanwhile, signals are more stable in transmission; of course, the first nylon wire 140 is filled in the gap between every two cable cores 120 and is filled in the gap with the electronic wires 130 in a staggered manner, and the second nylon wire 113 is twisted on the inner core group 110, so that the overall bending resistance of the cable can be enhanced.

In this embodiment, the shielding layer 200 covers the core wire set 100, so that the influence of external signals on internal signal transmission can be reduced, the shielding effect of the cable is good, the outer sheath 300 covers the shielding layer 200, and the outer sheath 300 is made of TPE or PVC or TPU, wherein the TPE or PVC or TPU has excellent colorability, and is soft in touch, weather-resistant, fatigue-resistant, temperature-resistant, and excellent in processability, and meanwhile, the cable can be recycled, so that the cost is reduced, and finally, the cable has the advantages of high tensile strength, high elongation, aging resistance, and long service life.

Referring to fig. 3, the cable core 120 in this embodiment includes an FEP insulated core 121, a copper wire winding layer 122, a metal copper foil tape 123 and a color polyester tape 124, wherein the copper wire winding layer 122 is wound on an outer wall of the FEP insulated core 121, and the metal copper foil tape 123 is coated on the outer wall of the copper wire winding layer 122, so as to perform multi-layer shielding on the cable core 120, thereby improving the shielding effect, and making the shielding effect of each cable core 120 good, the anti-interference capability strong, and the signal transmission less affected by external substances, and in addition, the color polyester tape 124 is coated on the outer wall of the metal copper foil tape 123, so as to distinguish the two layers.

Referring to fig. 1, in order to achieve a better shielding effect, the shielding layer 200 in the embodiment includes a conductive PE tape 210 and two layers of metal conductors 220, wherein the conductive PE tape 210 is wrapped around the core wire set 100 to effectively reduce the influence of external signals on internal signal transmission, the two layers of metal conductors 220 are respectively and sequentially overlapped and wound on the conductive PE tape 210, and the influence on high-frequency signal attenuation can be effectively reduced through the two layers of metal conductors 220, thereby ensuring high-speed stability of high-frequency signal transmission.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. The present invention may be readily implemented by those skilled in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the utility model as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A USB4 coaxial cable for high frequency data transmission, comprising: the shielding layer is covered on the core wire set, and the outer sheath is covered on the shielding layer;

2. The USB4 coaxial cable for high frequency data transmission according to claim 1, wherein: the inner core group is formed by twisting a power line, a pair-twisted signal line and a plurality of second nylon wires, and the pair-twisted signal line is formed by twisting two USB2.0 signal transmission lines.

3. The USB4 coaxial cable for high frequency data transmission according to claim 2, wherein: the cable core includes FEP insulated core, copper line winding layer, metal copper foil area and colored polyester area, copper line winding layer twines in the outer wall of FEP insulated core, the cladding of metal copper foil area is in the outer wall on copper line winding layer, colored polyester area then wraps in the outer wall in metal copper foil area.

4. The USB4 coaxial cable for high frequency data transmission according to claim 1, wherein: the shielding layer comprises a conductive PE belt and two layers of metal conductors, the conductive PE belt is wrapped on the core wire group, and the two layers of metal conductors are sequentially overlapped and wound on the conductive PE belt.

5. The USB4 coaxial cable for high frequency data transmission according to claim 1, wherein: the outer sheath is made of TPE (thermoplastic elastomer) or PVC (polyvinyl chloride) or TPU (thermoplastic polyurethane).