CN216697942U

CN216697942U - USB cable

Info

Publication number: CN216697942U
Application number: CN202122325692.5U
Authority: CN
Inventors: 谭柏成
Original assignee: Huizhou City Yuenda Electrical Hardware Products Co ltd
Current assignee: Huizhou City Yuenda Electrical Hardware Products Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-06-07
Anticipated expiration: 2031-09-24

Abstract

The utility model relates to the technical field of wire manufacturing, in particular to a USB wire which comprises core wires, a first shielding layer, a second shielding layer and an insulating sheath, wherein the core wires, the first shielding layer, the second shielding layer and the insulating sheath are different in number; the core wire, the first shielding layer, the second shielding layer and the insulating skin are arranged from inside to outside; the second shielding layer is made of aluminum magnesium wires. The utility model solves the problems that the existing USB wire realizes one-time shielding through an aluminum foil core-spun wire, a copper conductor is contacted with an aluminum foil to form double shielding, and then an external insulation mode is wrapped, but the cost of the USB wire is high due to the fact that the copper conductor with the weaving rate of over 65 percent is required to be contacted with the aluminum foil.

Description

USB cable

Technical Field

The utility model relates to the technical field of electric wire manufacturing, in particular to a USB wire.

Background

The electric wire is a conducting wire for conducting current, and is covered by a light and soft protective layer. The cable is composed of one or more insulated wires and is covered by a tough outer layer made of metal or rubber. Cables and wires are generally composed of three components, a core, an insulating sheath and a protective sheath.

The USB data line is used for connecting and communicating the computer and the external equipment. The USB is a most extensive external bus standard applied in the PC field, and is used to standardize the connection and communication between a computer and external devices, and the USB interface supports the plug-and-play and hot-plug functions of USB data line devices.

The existing USB wire needs to realize one-time shielding through an aluminum foil core-spun wire, a copper conductor is in contact with an aluminum foil to form double shielding, and then the outer insulation is wrapped, but the mode needs to adopt the contact of the copper conductor with the weaving rate of more than 65% and the aluminum foil, so that the problem of high cost is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a USB wire, which mainly solves the problem that the cost of the USB wire is high because the existing USB wire needs to adopt the mode that the copper conductor with the weaving rate of more than 65% is contacted with an aluminum foil, so that the double shielding is realized through the aluminum foil core-spun wire, the copper conductor is contacted with the aluminum foil to form the double shielding, and then the external insulation is wrapped.

The utility model provides a USB wire which comprises core wires, a first shielding layer, a second shielding layer and an insulating sheath, wherein the core wires are different in number; the core wire, the first shielding layer, the second shielding layer and the insulating skin are arranged from inside to outside; the second shielding layer is made of aluminum magnesium wires.

Preferably, a drainage line is arranged between the first shielding layer and the second shielding layer.

Preferably, the drain wire is a copper conductor drain wire.

Preferably, the second shielding layer is formed by weaving aluminum magnesium wires.

Preferably, the core comprises a conductor and a core insulation layer; any of the cores includes a conductor and a core insulating layer formed from the inside to the outside.

Preferably, there are four of said cords.

From the above, the following beneficial effects can be obtained by applying the technical scheme provided by the utility model:

firstly, the USB wire provided by the utility model forms a second shielding layer through the aluminum magnesium wire, and the aluminum magnesium wire is low in price and adopts the aluminum magnesium wire with the same weight to realize the resistance value similar to that of a copper conductor, so that the shielding effect of the USB wire is similar to that of the existing copper conductor, but the cost is greatly reduced;

secondly, the USB cable provided by the utility model is also provided with a copper conductor drainage line, and aiming at the inconvenience of welding processing of aluminum magnesium wires, the added copper conductor drainage line can facilitate the execution of the subsequent process flow.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a USB cable according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a USB cable according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The existing USB wire realizes one-time shielding through an aluminum foil core-spun wire, a copper conductor is in contact with an aluminum foil to form double shielding, and then an external insulation mode is wrapped, but the cost of the USB wire is high due to the fact that the copper conductor with the weaving rate of more than 65% is in contact with the aluminum foil.

As shown in fig. 1 and fig. 2, in order to solve the above problem, the present embodiment proposes a USB cable, which mainly includes core wires, a first shielding layer 21, a second shielding layer 22, and an insulating sheath 30; the core wire, the first shielding layer 21, the second shielding layer 22 and the insulating sheath 30 are arranged from inside to outside; the second shield layer 22 is made of aluminum magnesium wire.

Preferably, but not limited to, in this embodiment, the cores with different numbers are distributed annularly, the first shielding layer 21 wraps the cores, the second shielding layer 22 wraps the first shielding layer 21, and the insulating sheath 30 wraps the second shielding layer 22, and the core is in an annular structure formed by stacking when viewed in cross section.

Preferably, but not limited to, in this embodiment, the core wire has four PINs corresponding to the four PIN PINs of the USB terminal interface.

Preferably, but not limited to, the first shielding layer 21 is formed by wrapping a sheet structure in this embodiment.

Preferably, but not limited to, this embodiment proves that the first shielding layer 21 is an aluminum foil.

More specifically, a drain wire 40 is disposed between the first shield layer 21 and the second shield layer 22.

Preferably, drain wire 40 is a copper conductor drain wire 40.

Preferably, but not limited to, in the present embodiment, the drain wire 40 is electrically connected to both the first shielding layer 21 and the second shielding layer 22.

More specifically, the second shield layer 22 is formed by weaving aluminum magnesium wires.

In this embodiment, the braided layer was replaced with aluminum-magnesium wire, the electrical resistivity of the aluminum-magnesium wire was 0.05288 Ω · mm2/M, the specific gravity was 2.8g/cm, the electrical resistivity of the copper conductor was 0.017241 Ω · mm2/M, the specific gravity was 8.89g/cm, the electrical resistance of the aluminum-magnesium wire was 3 times that of copper, the specific gravity was 1/3, and the aluminum-magnesium wire with the same weight was used, the electrical resistance was close to that of the copper conductor, and the braiding was tighter.

More specifically, the core includes a conductor 11 and a core insulating layer 12; any core includes a conductor 11 and a core insulating layer 12 formed from the inside to the outside.

In conclusion, this embodiment provides a USB cable, and it is mainly woven through changing the second secondary shielding layer into aluminium magnesium silk by the copper conductor, under the prerequisite of guaranteeing shielding effect, greatly reduced USB cable's cost.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. A USB cable, comprising: the shielding cable comprises core wires, a first shielding layer, a second shielding layer and insulating skins, wherein the core wires, the first shielding layer, the second shielding layer and the insulating skins are different in number; the core wire, the first shielding layer, the second shielding layer and the insulating skin are arranged from inside to outside; the second shielding layer is made of aluminum magnesium wires; and a drainage wire is arranged between the first shielding layer and the second shielding layer.

2. The USB cable according to claim 1, wherein: the drainage wire is a copper conductor drainage wire.

3. A USB cable according to claim 1 or 2, characterised in that: the second shielding layer is formed by weaving aluminum magnesium wires.

4. A USB cable according to claim 1 or 2, characterised in that: the core comprises a conductor and a core insulating layer; any of the cores includes a conductor and a core insulating layer formed from the inside to the outside.

5. A USB cable according to claim 1 or 2, characterised in that: the number of the core wires is four.