CN108039230A - A kind of very high-speed data transfer line - Google Patents

Abstract

The invention provides an ultra-high-speed data transmission line, which includes five independently shielded circular double branch wires, a power core wire and a sheath; the sheath covers the circular double branch wire and the outer periphery of the power core wire; Each of the circular double branch wires includes two conductor wires extruded simultaneously and a shielding layer covering the outer circumference of the conductor wires. The ultra-high-speed data transmission line provided in the present invention, through the structural design of independently shielded circular double branch lines, reduces the requirements of the transmission line for equipment, so that the existing equipment can be used to produce the ultra-high-speed data transmission. The resource investment of the enterprise; the circular double branch line uses an independent shielding layer to facilitate the transmission of ultra-high-speed data signals.

Description

A super high speed data transmission line

technical field

The invention relates to the field of cables, in particular to an ultra-high-speed data transmission line.

Background technique

At present, whether it is HDMI (high-definition multimedia interface), Displayport (a high-definition digital display interface standard), or USB, the data transmission speed is constantly expanding to meet the requirements of 4K, 8K, 10K and higher-definition video or data. For example, HDMI2.1 requires a single-channel transmission speed of 12Gbps, while Displayport and USB3.1 require a single-channel transmission speed of 10Gbps. The improvement of transmission speed will inevitably require more stringent requirements on the performance of the transmission line, such as smaller signal delay, lower signal attenuation, etc. However, the current transmission line structure, such as STP (shielded twisted pair) or multi-coaxial, requires very sophisticated equipment to produce, and the production difficulty is high, resulting in high production costs. expenditure.

Contents of the invention

The main purpose of the present invention is to provide an ultra-high-speed data transmission line with simple structure to reduce production difficulty and overcome the defect of high production cost.

The present invention proposes an ultra-high-speed data transmission line, which includes five independently shielded circular double branch wires, a power supply core wire and a sheath; the sheath covers the circular double branch wires and the outer circumference of the power supply core wire; The circular double branch wire includes two conductor wires extruded at the same time and a shielding layer covering the outer circumference of the conductor wires.

Further, it also includes three electronic wires, and the electronic wires are accommodated in the sheath.

Further, copper wire is also included, and the copper wire is wound around the outer periphery of the conductor wire;

The shielding layer includes a first aluminum foil Mylar layer and a first metal shielding layer, the first aluminum foil Mylar layer covers the copper wire, and its aluminum surface faces the copper wire, and the first metal shielding layer Closely wrapped on the outer periphery of the first aluminum foil Mylar layer.

Further, a filling line is also included, and the filling line is filled in the space between the circular double branch lines in the sheath.

Further, the second aluminum foil Mylar layer is also included, the second aluminum foil Mylar layer is located in the sheath, and covers the circular double branch wire, the power core wire, the electronic wire and the filling wire.

Further, it also includes a second metal shielding layer, the second metal shielding layer is tightly wrapped on the outer periphery of the second aluminum foil Mylar layer, and the aluminum surface of the second aluminum foil Mylar faces the second metal shielding layer. Floor.

Further, when the second aluminum foil Mylar layer is wrapped, the overlap rate is greater than 25%, and the coverage rate of the second metal shielding layer wrapped on the outer periphery of the second aluminum foil Mylar layer is greater than 85%.

Further, the characteristic impedance of the circular double branch line is 100 Ohms.

Further, the five circular double branch wires are evenly distributed on the outer periphery of the power core wire.

Further, the sheath is a thermoplastic sheath.

The ultra-high-speed data transmission line provided in the present invention has the following beneficial effects:

The ultra-high-speed data transmission line provided in the present invention, by adopting the structural design of independently shielded circular double branch lines, reduces the requirements of the transmission line for equipment, so that the existing equipment can be used to produce the ultra-high-speed data transmission. The resource investment of the enterprise; the circular double branch line uses an independent shielding layer to facilitate the transmission of ultra-high-speed data signals.

Description of drawings

FIG. 1 is a schematic structural diagram of an ultra-high-speed data transmission line in an embodiment of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "the", "above" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements, units, modules and/or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Additionally, "connected" or "coupled" as used herein may include wireless connection or wireless coupling. The expression "and/or" used herein includes all or any elements and all combinations of one or more associated listed items.

Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with their meaning in the context of the prior art, and unless specifically defined as herein, are not intended to be idealized or overly Formal meaning to explain.

Referring to FIG. 1 , it is a schematic structural diagram of an ultra-high-speed data transmission line in an embodiment of the present invention.

An embodiment of the present invention proposes an ultra-high-speed data transmission line, including five independently shielded circular double branch lines 11 for transmitting signals, a power core wire 2 and a sheath 7; the sheath 7 covers the Circular double branch wires 11 and the outer periphery of the power core wire 2; each of the circular double branch wires 11 includes two conductor wires extruded at the same time and a shielding layer covering the outer periphery of the conductor wires.

In this embodiment, the five independently shielded circular double branch wires 11 are used as signal pairs for transmitting signals. The two conductor wires need to be extruded at the same time, and the outer circumferences are respectively covered with metal shielding (metal braiding or winding) and aluminum foil. Mylar shielding and other shielding layers can minimize the crosstalk attenuation and external interference generated during signal transmission. The advantages of using circular double-branch line 11 are: the two conductor lines of the signal pair are extruded at the same time, and the physical length of the two conductors is exactly the same as the transmission medium, which maximizes the avoidance of problems caused by the difference between the physical length and the transmission medium. Signal transmission failure; in addition, because the signal pair is a round wire, it minimizes the signal transmission failure caused by the deformation of the core wire in subsequent processes such as the total twisted belt. Preferably, the characteristic impedance of the independently shielded circular double branch line 11 is designed to be 100 Ohms. The power core wire 2 can be connected to a +5V power supply.

The two conductor wires of the above-mentioned circular double branch wire 11 can be 32AWG stranded tinned copper wires, and the insulation between the two conductor wires is made of solid low-density polyethylene material to facilitate processing.

The above-mentioned power supply core wire 2 needs to transmit current, and a larger conductor than the signal wire can be used, such as a 28AWG stranded conductor, and the insulating layer coated on its outer periphery is made of polypropylene material. The above-mentioned power core wire 2 is located in the middle, and the above-mentioned five circular double branch wires 11 are evenly distributed around the power core wire 2 .

In this embodiment, three electronic wires 3 are also included, the electronic wires 3 are housed in the sheath 7, and the electronic wires 3 can be respectively connected with different control signals as required. The size of the conductor in the electronic wire 3 can be 32AWG the same as the conductor wire in the circular double branch wire 11, and the outer peripheral insulating layer is made of polypropylene material.

In this embodiment, copper wire is also included, and the copper wire is wound around the outer circumference of the conductor wire, which is convenient;

The shielding layer includes a first aluminum foil Mylar layer 12 and a first metal shielding layer 13, the first aluminum foil Mylar layer 12 covers the copper wire, and its aluminum face faces the copper wire, the first The metal shielding layer 13 is tightly wrapped around the outer periphery of the first aluminum foil Mylar layer 12 to facilitate the transmission of high-speed data signals.

In this embodiment, a filling wire 4 (such as nylon filament) is also included, and the filling wire 4 is filled in the gap between the circular double branch wires 11 in the sheath 7 . There are gaps between the above-mentioned circular double-branch wires 11 and between the circular double-branch wires 11 and the sheath 7, so the above-mentioned electronic wires 3 and filling wires 4 can be filled in the above-mentioned gaps, so that the twisting is round and tight and has a high of tensile strength.

In one embodiment, it also includes a second aluminum foil Mylar layer 5, the second aluminum foil Mylar layer 5 is located in the sheath 7, and covers the circular double branch wire 11, the power core wire 2, the electronic Line 3 and fill line 4.

In another embodiment, it also includes a second metal shielding layer 6, the second metal shielding layer 6 is tightly wrapped on the outer periphery of the second aluminum foil Mylar layer 5, and the aluminum surface of the second aluminum foil Mylar facing the second metal shielding layer 6 so as to be in contact with the second metal shielding layer 6 . The use of the second aluminum foil Mylar layer 5 and the second metal shielding layer 6 further strengthens the ability to shield interference, so as to facilitate the transmission of high-speed data signals. The above two shielding layers can be used alternatively, or they can be used together in order to achieve a better effect of shielding interference.

Preferably, the second metal shielding layer 6 is braided by copper wire; the aluminum surface of the second aluminum foil Mylar layer 5 is in close contact with the second metal shielding layer 6 .

In another embodiment, the first metal shielding layer 13 is braided by copper wires, and the aluminum surface of the first aluminum foil Mylar layer 12 is in close contact with the first metal shielding layer 13 .

Specifically, when the second aluminum foil Mylar layer 5 is wrapped, the overlapping rate is greater than 25%, and the coverage rate of the second metal shielding layer 6 wrapped on the outer periphery of the second aluminum foil Mylar layer 5 is greater than 85%, To improve the ability to resist electromagnetic interference.

In the above embodiment, the five circular double branch wires 11 are evenly distributed on the outer periphery of the power core wire 2 .

In the above embodiment, the sheath 7 is made of thermoplastic plastic (TPE), which has good elasticity and hand feeling.

In summary, for the ultra-high-speed data transmission line provided in the embodiment of the present invention, five independently shielded circular double branch lines 11 for transmitting signals, a power core wire 2 and a sheath 7; the sheath 7 covers On the periphery of the circular double branch wires 11 and the power core wire 2 ; each of the circular double branch wires 11 includes two conductor wires extruded simultaneously and a shielding layer covering the periphery of the conductor wires. By adopting the structural design of the independently shielded circular double-branch line 11, the structure is simple, which reduces the requirements of the transmission line for equipment, so that existing equipment can be used to produce products that meet the requirements of ultra-high-speed data transmission, reducing the resource investment of enterprises; The double-shaped branch line 11 uses an independent shielding layer to facilitate the transmission of ultra-high-speed data signals.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related All technical fields are equally included in the scope of patent protection of the present invention.

Claims (10)

1. a kind of very high-speed data transfer line, it is characterised in that circle double branch line, a power supply cores including five individual screens Line and sheath；The sheath is coated on circular double branch lines and power supply cored wire periphery；Every circular double branch line bags Include while two conductor lines of extrusion molding and the shielded layer for being coated on the conductor lines periphery.

2. very high-speed data transfer line according to claim 1, it is characterised in that further include three electric wires, the electricity Sub-line is placed in the sheath.

3. very high-speed data transfer line according to claim 1, it is characterised in that further include copper wire, the copper wire winding In the conductor lines periphery；

The shielded layer includes the first aluminium foil wheat and draws layer and the first metal screen layer, and the first aluminium foil wheat is drawn described in layer cladding Copper wire, and its aluminium, facing to the copper wire, first metal screen layer is close to be coated on the first aluminium foil wheat drawing layer periphery.

4. very high-speed data transfer line according to claim 2, it is characterised in that further include filling line, the filling line In gap between the double branch lines of circle being filled in the sheath.

5. very high-speed data transfer line according to claim 4, it is characterised in that further include the second aluminium foil wheat and draw layer, institute Stating the second aluminium foil wheat draws layer to be located in the sheath, and coats circular double branch line, power supply cored wire, electric wire and the fillings Line.

6. very high-speed data transfer line according to claim 5, it is characterised in that further include the second metal screen layer, institute State the second metal screen layer and be close to be coated on the second aluminium foil wheat and draw layer periphery, the aluminium that the second aluminium foil wheat is drawn is facing to institute State the second metal screen layer.

7. very high-speed data transfer line according to claim 6, it is characterised in that when the second aluminium foil wheat draws layer cladding Duplication be more than 25%, second metal screen layer is coated on the second aluminium foil wheat and draws the coverage rate of layer periphery to be more than 85%.

8. very high-speed data transfer line according to claim 1, it is characterised in that the characteristic impedance of circular double branch lines For 100Ohms.

9. very high-speed data transfer line according to claim 1, it is characterised in that five circular double branch lines uniformly divide It is distributed in the power supply cored wire periphery.

10. very high-speed data transfer line according to claim 1, it is characterised in that the sheath uses thermoplastic plastic Sheath.