CN209880209U - USB electric wire shielding braided structure for increasing tensile property - Google Patents

Abstract

The utility model relates to a USB electric wire shielding braided structure for increasing tensile property, which comprises a USB electric wire main body and a shielding braided layer surrounding the periphery of the USB electric wire main body, wherein the shielding braided layer is provided with a N ingot alloy conductor, and N is an even number more than 4; in the N ingot alloy conductor, the N/2 ingot alloy conductor and the other N/2 ingot alloy conductor are mutually crossed and braided to form a sleeve-shaped shielding braid layer coated on the periphery of the USB wire main body; each ingot of alloy conductor is provided with a plurality of tin-copper alloy conductors; the anti-bending performance and the tensile property of the USB wire are improved, the service life of the USB wire is prolonged, and the competitiveness of a product is further improved.

Description

Braided construction of USB cable shield for added tensile properties

technical field

The utility model relates to the technical field of USB electric wires, in particular to a shielding braided structure of USB electric wires with increased tensile performance.

Background technique

There are two main anti-interference methods for existing USB cables: aluminum foil and braiding. The above two shielding methods have defects: In order to meet the testing standards of the USB Association, more than 80% of the products in the market are wrapped with aluminum foil and then braided with tinned copper materials. The number of bending times can only meet 5000-10000 times, and the product life is low.

Therefore, a new technical solution needs to be developed to solve the above problems.

Utility model content

The utility model aims at the shortcomings of the above-mentioned prior art, and its main purpose is to provide a shielded braided structure of USB wires with increased tensile performance, which improves the bending resistance and tensile performance of USB wires, and prolongs the service life of USB wires , thereby enhancing product competitiveness.

In order to achieve the above-mentioned purpose, the utility model takes the following technical solutions:

A shielded braided structure for USB wires with increased tensile performance, including a USB wire body and a shielded braided layer surrounding the periphery of the USB wire body, the shielded braided layer has an N ingot alloy conductor, and the N is an even number greater than 4; Among the N-ingot alloy conductors, the N/2 ingot alloy conductor and another N/2 ingot alloy conductor are cross-braided to form a sleeve-shaped shielding braid covering the periphery of the main body of the USB cable; each ingot alloy conductor has several strips of tin copper alloy conductor.

As a preferred solution, the surface of each tin-copper alloy conductor is tin-plated.

As a preferred solution, in the N/2 ingot alloy conductor or another N/2 ingot alloy conductor, bulletproof wires are added to each ingot alloy conductor.

As a preferred solution, the bulletproof wire is Kevlar bulletproof wire with a linear density of 200D.

As a preferred scheme, said N is 16.

As a preferred solution, each ingot alloy conductor has nine tin-copper alloy conductors.

As a preferred solution, the diameter of each tin-copper alloy conductor is 0.06 mm.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically: it mainly improves the anti-bending performance and increases the tensile strength of the USB wire through the sleeve-shaped shielding braiding layer formed by the tin-copper alloy conductor Performance, prolong the service life of the USB cable, and then improve the competitiveness of the product;

Secondly, the flexibility, tensile strength and stability of the USB cable can be improved by increasing the Kevlar bulletproof wire with a linear density of 200D per ingot alloy conductor.

Description of drawings

Fig. 1 is the transverse sectional structure schematic diagram of the embodiment of the utility model;

Fig. 2 is a schematic diagram of the longitudinal section structure of the shielding braid layer according to the embodiment of the present invention (only a part is shown).

Explanation of reference numbers:

10. USB cable main body

11. The first core wire group 12. The second core wire group

13. Cover

20. Alloy conductor

21. Tin-copper alloy conductor 22. Bulletproof wire.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 and 2, a shielding braided structure of a USB cable with increased tensile performance includes a USB cable body 10 and a shielding braid surrounding the periphery of the USB cable body 10, wherein:

In this embodiment, the USB cable main body 10 includes two first core wire groups 11 and one second core wire group 12, and the first core wire group 11 and the second core wire group 12 both include the first core wire group 11 and the second core wire group 12. An inner ballistic wire filler, a first core wire layer surrounding the periphery of the first inner bulletproof wire filler body, the periphery of the first core wire layer is covered with a first middle quilt; the first core wire layer is composed of several first core wire layers twisted wire. The second core wire group 12 includes a second inner bulletproof wire filler, a second core wire layer surrounding the periphery of the second inner bulletproof wire filler, and the periphery of the second core wire layer is covered with a second quilt; The outer periphery of the second quilt is wound with a third core wire layer, and the third core wire layer is wound together by several third core wires and three reinforcing wires whose spacing is distributed among the third core wires; two first core wires After the wire group 11 and a second core wire group 12 are twisted into a bundle, they are covered with an outer jacket 13. The outer surface of the outer jacket 13 is preferably designed with several longitudinally extending vertical lines, and the vertical lines extend along the radial direction. Arranged at intervals; the shielding braided layer is braided around the outer periphery of the outer jacket, and has relatively large contact friction with the vertical grains, and the combination is firm.

The shielding braiding layer has N ingot alloy conductors 20 , the N is an even number greater than 4, preferably, the N is 16. In the N-ingot alloy conductor 20, the N/2 ingot alloy conductor and another N/2 ingot alloy conductor are cross-braided to form a sleeve-shaped shielding braid covering the periphery of the USB cable main body 10; each ingot alloy conductor 20 has Several tin-copper alloy conductors, in this embodiment, the surface of each tin-copper alloy conductor is tinned; each ingot alloy conductor has 9 tin-copper alloy conductors 21, and the diameter of each tin-copper alloy conductor 21 is 0.06 mm .

In this embodiment, in the N/2 ingot alloy conductor or another N/2 ingot alloy conductor, bulletproof wires 22 are added to each ingot alloy conductor. Preferably, the bulletproof wire is Kevlar bulletproof wire with a linear density of 200D. It should be noted that it can also be other types of bulletproof wire, which is not limited here. The improved USB cable can reach 15,000-20,000 times in the bending test, which increases the tensile performance, prolongs the service life, and improves the competitiveness of the product. It should be noted that, as shown in Fig. 1, it only shows the embodiment of 8 anchorage alloy conductors 20, and each anchorage has all increased bulletproof wire 22, in fact, the quantity of increasing bulletproof wire 22 is not limited, at least one The bulletproof wire 22 may also have multiple bulletproof wires 22 .

The key points of the design of this utility model are: it mainly improves the bending resistance and the tensile performance of the USB wire through the sleeve-shaped shielding braid formed by the tin-copper alloy conductor, prolongs the service life of the USB wire, and then improves the competition of products. force;

Secondly, the flexibility, tensile strength and stability of the USB cable can be improved by increasing the Kevlar bulletproof wire with a linear density of 200D per ingot alloy conductor.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model in any way, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model, All still belong to within the scope of the technical solution of the utility model.

Claims (7)

1. The utility model provides an increase USB electric wire shielding braided structure of tensile property which characterized in that: the USB cable comprises a USB cable main body and a shielding braid surrounding the periphery of the USB cable main body, wherein the shielding braid is provided with an N-ingot alloy conductor, and N is an even number greater than 4; in the N ingot alloy conductor, the N/2 ingot alloy conductor and the other N/2 ingot alloy conductor are mutually crossed and braided to form a sleeve-shaped shielding braid layer coated on the periphery of the USB wire main body; each ingot of alloy conductor has a number of tin-copper alloy conductors.

2. The USB wire shielding braid structure for increasing tensile strength of claim 1, wherein: the surface of each tin-copper alloy conductor is plated with tin.

3. The USB wire shielding braid structure for increasing tensile strength of claim 1, wherein: and in the N/2 ingot alloy conductor or the other N/2 ingot alloy conductor, each ingot alloy conductor is added with an anti-bullet wire.

4. The USB wire shielding braid structure for increasing tensile strength of claim 3, wherein: the anti-stretch yarn is Kevlar anti-stretch yarn with the linear density of 200D.

5. The USB wire shielding braid structure for increasing tensile strength of claim 1, wherein: and N is 16.

6. The USB wire shielding braid structure for increasing tensile strength of claim 1, wherein: each ingot of alloy conductor had 9 conductors of tin-copper alloy.

7. The USB wire shielding braid structure for increasing tensile strength of claim 6, wherein: each of the tin-copper alloy conductors had a diameter of 0.06 mm.