WO2018027534A1

WO2018027534A1 - Data line

Info

Publication number: WO2018027534A1
Application number: PCT/CN2016/094126
Authority: WO
Inventors: 蔡伟强; 方晓东; 方晓春
Original assignee: 广州市雷曼兄弟电子科技有限公司
Priority date: 2016-08-09
Filing date: 2016-08-09
Publication date: 2018-02-15

Abstract

A data line comprising a plurality of transmission line cores (10), a shielding layer (20) and a sheath layer (30). The shielding layer (20) and the sheath layer (30) are wrapped outside the transmission line cores (10) in sequence from inside to outside; a first anti-tensile fiber (40) is provided in each of the transmission line cores (10); a second anti-tensile fiber (50) is provided in the shielding layer (20), and the second anti-tensile fiber (50) is disposed among the plurality of transmission line cores (10); and the length of the first anti-tensile fiber (40) and the second first anti-tensile fiber (50) are the same as that of the transmission line cores (10). The data line has high-strength anti-tensile performance, good toughness and bending resistance; anti-tensile structures are provided, including the first anti-tensile fiber (40) inside each of the transmission line cores (10) and the second anti-tensile fiber (50) among the transmission line cores (10); the length of the first anti-tensile fiber (40) and the second anti-tensile fiber (50) are the same as that of the transmission line cores (10), so that when the data line is subjected to a pulling force, the first anti-tensile fiber (40) and the second anti-tensile fiber (50) can bear and share the pulling force simultaneously to make sure that the transmission line cores (10) are not damaged.

Description

Data line

Technical field

The present invention relates to the field of electronic product accessories, and more particularly to a data line.

Background technique

There are many commonly used electronic products. Some electronic products need to be connected to other electronic products, machines or fixed interfaces through cables to transmit data, provide power or charge.

At present, the structure of the commonly used data lines on the market is generally an outer sleeve wrapped with a plurality of core wires, wherein the outer sleeve is a plastic sleeve, and the inner core wire is a copper wire. During use, due to the external tension, its own gravity or repeated winding and winding, although the plastic sleeve can be elastically deformed within a certain range, the external force can be restored to the original, but the core wire in the casing will be affected. Loss or plastic deformation, the external force can not be restored after the elimination, or even can not be used normally.

The existing data lines have poor toughness, low tensile strength, easy bending and entanglement, resulting in failure to function normally, and short service life. Therefore, it is necessary to design a high-strength tensile and bending resistant data line.

Summary of the invention

The invention provides a data line with high strength tensile resistance, bending resistance and long service life.

In order to solve the above technical problems, the technical solution adopted by the present invention is:

Providing a data line comprising a plurality of transmission cores, a shielding layer and a sheath layer, wherein the shielding layer and the sheath layer are sequentially coated from the inside to the outside of the transmission core, and the inside of each of the transmission cores a first tensile fiber is disposed, a second tensile fiber is disposed in the shielding layer, and the second tensile fiber is located between the plurality of transmission cores; the first tensile fiber, the first The length of the two tensile fibers is the same as the length of the transmission core.

Preferably, the first tensile fiber and/or the second tensile fiber are aryl fibers.

Optionally, the second tensile fiber is provided with a plurality of strips, and the plurality of the second tensile fibers are evenly disposed between the plurality of the transmission cores.

Preferably, the outer wall of each of the transmission cores is further covered with an insulating layer.

Preferably, the shielding layer comprises an aluminum film layer and a braided alloy strand layer which are sequentially coated from the inside to the outside of the core of the transmission wire.

Preferably, the sheath layer comprises a thermoplastic elastomer rubber layer and a braided wire layer that are sequentially coated from the inside to the outside of the shielding layer.

Optionally, the transmission line core includes a signal line and a power line, and each of the signal lines and each of the power lines is provided with the first tensile fiber, and the second tensile fiber is located in a plurality of strips. Between the signal line and a plurality of the power lines.

Preferably, each of the signal lines is formed by twisting 19 tinned copper wires having a wire diameter of 0.08 mm and at least one of the first tensile fibers.

Preferably, each of the power lines is formed by twisting 40 tinned copper wires having a wire diameter of 0.12 mm and at least one of the first tensile fibers.

Preferably, the signal line and the power line are respectively provided with two, and each of the signal lines and each of the power lines are provided with one of the first tensile fibers, and the second tensile force The fiber is provided with five strips, and the five second tensile fibers are evenly disposed between the two signal lines and the two power lines.

Compared with the prior art, the data line of the present invention simultaneously adds a tensile structure between the inside of each transmission core and each transmission core, which is a first tensile fiber and a second tensile fiber, respectively, and the length thereof is The length of the transmission core is the same, so that when the data line is subjected to the tensile force, the first tensile fiber and the second tensile fiber can simultaneously bear and share the pulling force to ensure the transmission core is not damaged. The data line has high tensile strength, good toughness, and resistance to bending, and the service life is greatly increased compared with ordinary data lines.

DRAWINGS

1 is a schematic cross-sectional view of a first type of data line in accordance with an embodiment of the present invention.

2 is a schematic cross-sectional view showing a second type of data line in accordance with an embodiment of the present invention.

detailed description

The invention will now be further described in conjunction with specific embodiments. The drawings are for illustrative purposes only, and are merely illustrative, rather than actual, and are not to be construed as limiting the scope of the invention; Enlarging or reducing does not represent the size of the actual product; for those skilled in the art, Certain well-known structures and their descriptions may be omitted from the drawings.

1 and 2 show an embodiment of a data line of the present invention.

As shown in FIG. 1 , the data line of the present embodiment is mainly composed of a plurality of transmission cores 10 , a shielding layer 20 and a sheath layer 30 . The shielding layer 20 and the sheath layer 30 are sequentially covered from the inside to the outside of the transmission core 10 . In order to improve the tensile strength of the data line, a first tensile fiber 40 is disposed inside each of the transmission cores 10, a second tensile fiber 50 is disposed in the shielding layer 20, and the second tensile fibers 50 are located in the plurality of transmission lines. Between the cores 10; at the same time, in order to enable the first tensile fiber 40 and the second tensile fiber 50 to have sufficient tensile resistance, improve the tensile strength of the entire data line, and also facilitate the fixed installation, first The design lengths of the tensile fiber 40 and the second tensile fiber 50 should be the same as the length of the transmission core 10, and when the joints at both ends of the data line are fixed, the tensile structure inside can be fixed at the same time.

That is, the data line of the present embodiment simultaneously adds a tensile-stretching structure (the first tensile fiber 40 and the second tensile fiber 50, respectively) between the inside of each of the transmission cores 10 and each of the transmission cores 10, and The length is the same as the length of the transmission core 10, so that when the data line is subjected to the tensile force, the first tensile fiber 40 and the second tensile fiber 50 can simultaneously bear and share the pulling force to ensure that the transmission core is not damaged. The data line has high tensile strength and is resistant to bending, and its service life is greatly increased compared to ordinary data lines.

In an embodiment of the invention, the first tensile fiber 40 is an aryl fiber. The aryl fiber has excellent properties such as light weight, high strength, wear resistance, high temperature resistance and long life cycle, and can protect the data wire and the wire from being stretched and broken. In actual production, high-strength polyarylate fiber can be used as the first tensile fiber 40. Specifically, Kuraray's high-performance fiber under the trade name Vectran can be used to strengthen the overall tensile strength of the data line. In order to further improve the tensile strength of the data line and enhance the toughness, the second tensile fiber 50 may also adopt the same material structure as the first tensile fiber 40, such as a ballistic resistant wire, or may be used as the second tensile fiber 50. The material is selected, the dimensional stability is good, and the comprehensive performance is excellent.

It can be understood that the number of the first tensile fibers 40 disposed inside the transmission core 10 may not be limited to one, but in actual use, in order to avoid the overall line diameter of the data line is too thick, and to facilitate the data line end and interface. Fixed between each, generally only on each transmission line A first tensile fiber 40 may be disposed inside the core 10. For the second tensile fiber 50 disposed inside the shielding layer 20, since there is more than one transmission core 10, a gap is left between the plurality of transmission cores 10, so that a plurality of second tensile layers are disposed in the shielding layer 20. The effect of the fibers 50 on the coverage of the shield 20 is not significant. Therefore, in the embodiment of the present invention, in order to further improve the tensile resistance of the entire data line, at least two second tensile fibers 50 may be disposed, which may be 3-5 strips, and the second tensile fibers 50 are evenly disposed on These several transmission lines are between the cores 10.

As shown in FIG. 1, an insulating layer 101 may be coated on the outer wall of each of the transmission cores 10. Preferably, the insulating layer 101 can be made of a high-resistance insulating material to protect each of the transmission cores 10. For example, TPEE (thermoplastic polyester elastomer) can be used as the insulating layer 101, which has excellent insulating properties.

Preferably, as shown in FIG. 2, the shielding layer 20 includes an aluminum film layer 21 and a braided alloy strand layer 22 which are sequentially coated from the inside to the outside of the transmission core 10, and the sheath layer 30 is sequentially coated from the inside to the outside. The thermoplastic elastomer rubber layer 31 and the braided wire layer 32 outside the shield layer 20. That is, the data line of the present embodiment is covered outside the transmission core 10, and has an aluminum film layer 21, a braided alloy strand layer 22, a thermoplastic elastomer rubber layer 31 (TPE layer), and a braided wire in this order from the inside to the outside. Layer 32. Among them, the aluminum film layer 21 can resist interference, shield the electromagnetic and protect the transmission core 10, and improve the stability of the data line; the braided alloy strand layer 22 can also resist interference, shield the electromagnetic and protect the transmission core 10, optimize signal transmission; TPE layer (The thermoplastic elastomer rubber layer 31) has good wear resistance and fatigue resistance, high strength, good resilience, and protects the data line to prolong its service life; the braided wire layer 32 can be made of a high-density braided wire to prevent the wire. Winding with the line, in addition, you can also match different colors according to your preference to increase the recognition and aesthetics of the data line.

In the above embodiment, the transmission core 10 includes the signal line 11 and the power line 12 (as shown in FIGS. 1 and 2), and the first tension is provided in each of the signal lines 11 and each of the power lines 12. The fiber 40, the second tensile fiber 50 is located between the plurality of signal lines 11 and the plurality of power lines 12. In order to explain the data line of the present invention in more detail, in the embodiment, two signal lines 11 and two power lines 12 are respectively disposed as the transmission core 10, and correspondingly, five strips are set by using a preferred layout method. Two tensile fibers 50, and These five second tensile fibers 50 are evenly arranged between the four transmission cores 10.

More specifically, in a preferred manner, each of the signal lines 11 is composed of 19 tinned copper wires having a wire diameter of 0.08 mm (specifically, a 28 AWG×2C tinned copper wire number can be used) and at least one first resistance. The drawn fiber 40 is twisted; each power cord 12 is composed of 40 tinned copper wires having a wire diameter of 0.12 mm (specifically, a 21 AWG×1C tinned copper wire number) and at least one first tensile fiber. 40 stranded. The use of tinned copper wire as the core prevents oxidation and maintains the long-lasting good performance of the wire.

In the actual production test, according to the setting of the number of the first tensile fiber 40 and the second tensile fiber 50, the following samples were respectively subjected to tensile tests. The standard/condition of the test is: the two ends of the data line are fixed in parallel on the testing machine. When fixing, it should be in a natural level, the data line end is fixed, 10cm is fixed at the hook of the stretching device, and the force is continuously pulled with 18-22N. Stretch for 6 seconds, repeat 100 times; test result / judgment standard (data line appearance is not damaged, broken line, data line function is normal) is divided into 1-10 grades, the higher the level from 1 to 10, the better the tensile strength . At the same time, considering that the overall wire diameter of the data line is too large, only one first tensile fiber 40 is disposed in the transmission core 10, and the test results of each sample are as follows under the test environment of temperature 22 ° C and humidity 75% RH. Tables (all based on four transmission cores, on which a different number of second tensile fibers 50 are added; at the same time an existing common data line is used as a comparative sample):

Table 1 Tensile test results of different sample data lines

As can be seen from Table 1, when there are four transmission cores 10, one first tensile fiber 40 is disposed in each of the transmission cores 10, and five second tensile members are evenly disposed between the transmission cores 10. In the case of the fiber 50, the tensile property is better without affecting the wire diameter of the data line, and is much higher than the tensile resistance of the conventional conventional data line.

It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

A data line includes a plurality of transmission line cores, a shielding layer and a sheath layer, wherein the shielding layer and the sheath layer are sequentially wrapped from the inside to the outside of the transmission line core, wherein each of the transmission lines a first tensile fiber is disposed inside the core, a second tensile fiber is disposed in the shielding layer, and the second tensile fiber is located between the plurality of transmission cores; the first tensile fiber, The length of the second tensile fiber is the same as the length of the transmission core.
The data line of claim 1 wherein said first tensile fiber and/or said second tensile fiber are aryl fibers.
The data line according to claim 2, wherein said second tensile fiber is provided with a plurality of strips, and said plurality of said second tensile fibers are evenly disposed between said plurality of said transmission cores.
The data line according to claim 3, wherein the outer wall of each of the transmission cores is further covered with an insulating layer.
The data line according to claim 1, wherein said shielding layer comprises an aluminum film layer and a braided alloy strand layer which are sequentially coated from the inside to the outside of said transmission line core.
The data line according to claim 1, wherein said sheath layer comprises a thermoplastic elastomer rubber layer and a braided wire layer which are sequentially coated from the inside to the outside of said shield layer.
The data line according to any one of claims 1 to 6, wherein the transmission line core comprises a signal line and a power line, and each of the signal lines and each of the power lines is provided with the a tensile fiber, the second tensile fiber being located between the plurality of the signal lines and the plurality of power lines.
The data line according to claim 7, wherein each of said signal lines is formed by twisting 19 tinned copper wires having a wire diameter of 0.08 mm and at least one of said first tensile fibers.
The data line according to claim 7, wherein each of said power lines is formed by twisting 40 tinned copper wires having a wire diameter of 0.12 mm and at least one of said first tensile fibers.
The data line according to claim 7, wherein the signal line and the power line are respectively provided with two, and each of the signal lines and each of the power lines are provided with one of the first A tensile fiber, the second tensile fiber is provided with five strips, and the five second tensile fibers are evenly disposed between the two signal lines and the two power lines.