CN111210928B

CN111210928B - Wire and USB data line

Info

Publication number: CN111210928B
Application number: CN201811400001.XA
Authority: CN
Inventors: 许强东; 于立成; 李杨
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2022-05-06
Anticipated expiration: 2038-11-22
Also published as: CN111210928A

Abstract

The present disclosure relates to a wire and a USB data line, the wire including: the core wires at the outer layer surround the periphery of the core wires at the inner layer; the insulating layer is arranged between two adjacent layers of the core wires to separate the two adjacent layers of the core wires; an outer coating layer surrounding the outer peripheries of the core wire and the insulating layer. The technical scheme provided by the disclosure can obtain the following beneficial effects: different cores are defined to different radial positions of the wire, enabling the automatic welding machine to identify the different cores by their radial positions or order so that the wire can be processed using the automatic welding machine.

Description

Wire and USB data line

Technical Field

The present disclosure relates to a wire, and more particularly, to a wire and a USB data line that can be used to transmit data.

Background

The USB data line used in the related art includes a core wire, an insulating layer, a shielding layer, and a jacket layer. The core wires have 4, the 4 core wires are respectively defined as VBUS, D +, D-and GND according to different functions, the outer layers of the 4 core wires are surrounded by the insulating layers, and the 4 core wires surrounding the insulating layers are wound to form a stranded structure. 4 heart yearns are wrapped up in to the shielding layer, and the shielding layer includes aluminium foil and woven mesh (or winding conductor), and woven mesh (or winding conductor) sets up in the skin of aluminium foil, and aluminium foil and woven mesh (or winding conductor) can play electromagnetic shield's effect, and the tegument sets up in the skin of shielding layer outward. Since it is difficult for an automatic welding machine to distinguish four core wires twisted together, it is difficult to weld the core wires using the automatic welding machine.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a wire that enables a welding process using, for example, an automatic welding machine at the time of manufacturing. The present disclosure also provides a USB data line.

According to a first aspect of embodiments of the present disclosure, there is provided a wire, comprising:

the core wires at the outer layer surround the periphery of the core wires at the inner layer;

the insulating layer is arranged between two adjacent layers of the core wires to separate the two adjacent layers of the core wires;

an outer coating layer surrounding the outer peripheries of the core wire and the insulating layer.

Preferably, the plurality of core wires and the insulating layer are coaxial.

Preferably, at least one core wire located outside the core wire of the innermost layer is formed by weaving a plurality of conductive wires, by twisting a plurality of conductive wires, or by winding a linear or ribbon-shaped conductor.

Preferably, the insulating layer is annular in cross section.

Preferably, a shielding layer is disposed between the core wire and the outer layer at the outermost layer.

Preferably, the shielding layer is an aluminum foil.

Preferably, the wire is a wire that can be used for data transmission.

Preferably, the core includes a GND core, and the GND core is located at an outermost layer of the plurality of cores.

According to a second aspect of the embodiments of the present disclosure, there is provided a USB data line, including the conductor of any one of the above technical solutions.

Preferably, the core comprises four cores, which are respectively defined as a VBUS core, a D + core, a D-core and a GND core according to different functions, wherein the GND core is located at the outermost layer of the four cores.

The technical scheme provided by the embodiment of the disclosure can obtain the following beneficial effects: different cores are defined to different radial positions of the wire, enabling the automatic welding machine to identify the different cores by their radial positions or order so that the wire can be processed using the automatic welding machine.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram illustrating a structure of a wire for a USB data line according to an embodiment of the present disclosure.

Description of the reference numerals

1-core 11 first core 12 second core 13 third core 14 fourth core

2 insulating layer 21 first insulating layer 22 first insulating layer 23 third insulating layer

And 3 outer tegument layer.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

As shown in fig. 1, a wire for a USB data line according to the present disclosure includes a core wire 1, an insulating layer 2, and a jacket layer 3.

The core 1 comprises a first core 11, a second core 12, a third core 13 and a fourth core 14, the 4 cores being defined as a VBUS (power positive) core, a D + (data +) core, a D- (data-) core and a GND (ground) core, respectively, according to different functions. The first core wire 11 may be in a thin wire shape, and the second core wire 12, the third core wire 13, and the fourth core wire 14 may be in a thin tube shape as a whole.

The insulating layer 2 includes a first insulating layer 21, a second insulating layer 22, and a third insulating layer 23.

The second core wire 12 surrounds the outer periphery of the first core wire 11, and a first insulating layer 21 is provided between the first core wire 11 and the second core wire 12, the first insulating layer 21 radially spacing (physically spacing and/or electrically insulating) the first core wire 11 from the second core wire 12. The third core wire 13 is surrounded on the outer periphery of the second core wire 12, and a second insulating layer 22 is provided between the second core wire 12 and the third core wire 13, the second insulating layer 22 separating the second core wire 12 and the third core wire 13 in the radial direction. The fourth core wire 14 surrounds the outer periphery of the third core wire 13, and a third insulating layer 23 is provided between the third core wire 13 and the fourth core wire 14, the third insulating layer 23 radially separating the third core wire 13 and the fourth core wire 14.

The cross-section of the first core 11 may be circular, and the cross-sections of the second core 12, the third core 13, and the fourth core 14 may be substantially circular. The cross-section of the first, second and third

insulating layers

21, 22 and 23 may be circular.

Further, the first core wire 11, the second core wire 12, the third core wire 13, and the fourth core wire 14 may be coaxial. Therefore, the flexibility of the wire for the USB data line is basically consistent when the wire is bent towards all directions, and the wire has good hand feeling.

It is understood that the second core wire 12, the third core wire 13, and the fourth core wire 14 may be formed by weaving a plurality of conductive wires, twisted a plurality of conductive wires, or wound by a wire-shaped or ribbon-shaped conductor. Therefore, the wall thickness of each portion of the second core wire 12, the third core wire 13, and the fourth core wire 14 is not necessarily the same. The first insulating layer 21, the second insulating layer 22, and the third insulating layer 23 may be formed by winding a tape-shaped insulator, and thus the wall thickness of each portion of the first insulating layer 21, the second insulating layer 22, and the third insulating layer 23 is not necessarily the same. It is understood that fig. 1 is only used for illustrating the relative positional relationship of the core wire, the insulating layer and the outer layer, and is not used for depicting the specific structural details of the core wire, the insulating layer and the outer layer.

The outer layer 3 is tubular having a cavity, for example, a circular tube, the core wire 1 and the insulating layer 2 are disposed in the cavity of the outer layer 3, and the outer layer 3 can protect the core wire 1 and the insulating layer 2.

The core wire 1 may be made of a metal material such as copper or an alloy material, the insulating layer 2 may be made of an insulating material such as PP, and the cover layer 3 may be made of an insulating material such as TPE (thermoplastic elastomer).

It is understood that the core wire 1 at the outer layer can function as an electromagnetic shield, and thus the fourth core wire 14 at the outermost layer is preferably a GND core wire, and the remaining core wires can freely define the function thereof. For example, the first core 11 is a VBUS core, the second core 12 is a D + core, the third core 13 is a D-core, and the fourth core 14 is a GND core.

Further, a shielding layer such as an aluminum foil or a copper foil may be disposed between the fourth core wire 14 and the outer layer 3, the aluminum foil is advantageous for enhancing the electromagnetic shielding effect of the wire for the USB data line and is low in cost.

It is understood that the conductors for USB data lines in the above embodiments include four cores, however, the present invention is not limited thereto, the conductors may be other types of data transmission lines, and the cores may include other numbers of cores, such as three or five cores.

Compared with the wire for the USB data line in the prior art, the wire for the USB data line in the embodiment of the present disclosure has the following advantages:

(1) the automatic welding machine can identify the core wires with different functions according to the determined radial positions or the sequence of the core wires with different functions, so that the automatic welding machine can be used to realize automatic production.

(2) On the basis of keeping the electromagnetic shielding function, the material cost of the woven mesh is saved by omitting the structure of the woven mesh for electromagnetic shielding.

(3) The core wires do not use a twisted structure which is twisted together, but a layered structure formed by wrapping, so that the wire for the USB data wire has softer hand feeling.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the terms of the appended claims.

Claims

1. A wire for use as a wire for a USB data line, the wire comprising:

an outer layer surrounding the outer peripheries of the core wire and the insulating layer;

the plurality of core wires and the insulating layer are coaxial;

the core wire comprises four core wires which are respectively defined as a VBUS core wire, a D + core wire, a D-core wire and a GND core wire according to different functions, wherein the GND core wire is positioned at the outermost layer of the four core wires.

2. The wire according to claim 1, wherein at least one core wire located outside the core wire of the innermost layer is formed by braiding a plurality of conductive wires, by stranding a plurality of conductive wires, or by winding a linear or ribbon-shaped conductor.

3. The wire of claim 1, wherein the insulating layer is annular in cross-section.

4. The wire according to claim 1, wherein a shielding layer is provided between the core wire positioned at the outermost layer and the outer layer.

5. The wire of claim 4, wherein the shielding layer is aluminum foil.

6. A USB data line, characterized in that it comprises a conductor according to any one of claims 1 to 5.