CN207097498U - Cable - Google Patents

Abstract

It the utility model is related to a kind of cable, it includes earth conductor, power conductor, at least one pair of differential signal conductors, insulator, aluminium foil layer, the earth conductor provides the ground connection of power conductor, the insulator is wrapped in power conductor and differential signal conductors outside, the aluminium foil layer is wrapped on the outside of insulator corresponding to differential signal conductors, the cable is also wrapped in earth conductor and the superconduction graphite layer on the outside of aluminium foil layer, the earth conductor is connected with superconduction graphite layer, power ground and signal shielding are provided, improve the shielding properties of cable.

Description

Cable

Technical field

It the utility model is related to a kind of cable.

Background technology

Cable is widely used in electronic equipment, to carry out electricity between electronic equipment or between electronic equipment internal part Source or the transmission of signal, conventional cable generally include differential signal conductors, earth conductor, power conductor, parcel each conductor Insulator, screen layer（Aluminium foil or braiding）And insulation sheath, earth conductor include two kinds of signal ground and power ground.

Utility model content

The purpose of this utility model is the provision of a kind of cable for having and improving shield effectiveness.

To realize object defined above, the utility model adopts the following technical scheme that：A kind of cable, it includes earth conductor, electricity Source conductor, at least one pair of differential signal conductors, insulator, aluminium foil layer, the earth conductor provides the ground connection of power conductor, described Insulator is wrapped in power conductor and on the outside of differential signal conductors, the aluminium foil layer is wrapped in insulation corresponding to differential signal conductors External side, the cable are also wrapped in the superconduction graphite layer on the outside of earth conductor and aluminium foil layer, the earth conductor with Superconduction graphite layer connects.

As further improvement of the utility model, the superconduction graphite layer uses the technique system that physics is kneaded extrusion Into.

As further improvement of the utility model, the cable is flexible flat cable, and differential signal conductors are arranged in Between earth conductor and power conductor.

As further improvement of the utility model, the cable only has an earth conductor.

As further improvement of the utility model, the earth conductor be arranged in adjacent two pairs of differential signal conductors it Between, there is provided signal and power ground.

As further improvement of the utility model, the cable is additionally provided with the insulation being wrapped on the outside of superconduction graphite layer Crust.

As further improvement of the utility model, the earth conductor, power conductor, the spacing phase of differential signal conductors Together.

The utility model cable is also wrapped in earth conductor and the superconduction graphite layer on the outside of aluminium foil layer, the ground connection Conductor is connected with superconduction graphite layer, there is provided power ground and signal shielding, is improved shield effectiveness, is improved signal transmission performance.

Brief description of the drawings

Fig. 1 is the schematic cross-section of the cable of the utility model embodiment 1.

Fig. 2 is the schematic cross-section of the cable of the utility model embodiment 2.

Embodiment

Refer to shown in Fig. 1, the cable 100 of the utility model embodiment 1, be flexible flat, it includes a ground connection and led Body 11, a power conductor 12, be arranged between earth conductor 11 and power conductor 12 it is some to differential signal conductors 13, insulation Body 20, aluminium foil layer 30, superconduction graphite layer 40 and insulation sheath 50.

Insulator 20 is directly wrapped in power conductor 12 and the outside of differential signal conductors 13.

Aluminium foil layer 30 is wrapped in the outside of insulator 20 corresponding to differential signal conductors 13.

Superconduction graphite layer 40 using physics be kneaded extrusion process be made, be wrapped in earth conductor 11, aluminium foil layer by layer 30 and The outside of the corresponding insulator 20 of power conductor 12.Superconduction graphite layer 40 electrically connects with earth conductor 11.

Insulation sheath 50 is wrapped in the outside of superconduction graphite layer 40.

The utility model cable 100 by the use of aluminium foil layer 30 to superconduction graphite layer 40 to earth conductor 11 as reference ground, Earth conductor 11 functions simultaneously as the ground connection of power conductor 12, and superconduction graphite layer 40 provides signal shielding function, is advantageous to improve Shield effectiveness, improve signal transmission performance.

Refer to shown in Fig. 2, the cable 200 of the utility model embodiment 2, exist with the main distinction of the cable of embodiment 1 In, earth conductor 14 is arranged between 200 adjacent two pairs of differential signal conductors 13 of cable, the spacing of each conductor 14,12,13 is identical, Superconduction graphite layer 40 wraps up each earth conductor 14, and earth conductor 14 provides differential signal conductors jointly with superconduction graphite layer 40 13 reference ground and the ground connection of power conductor 12, superconduction graphite layer 40 also provide signal shielding effect, the cloth of earth conductor 14 Put and advantageously reduce crosstalk between adjacent two pairs of differential signal conductors 13, improve the high frequency performance of cable 200.

Although being example purpose, preferred embodiment of the present utility model, the common skill of this area are had been disclosed for Art personnel will realize the situation of the scope of the utility model and spirit disclosed in not departing from by appended claims Under, various improvement, increase and substitution are possible.

Claims (7)

1. a kind of cable, it includes earth conductor, power conductor, at least one pair of differential signal conductors, insulator, aluminium foil layer, institute The ground connection that earth conductor provides power conductor is stated, the insulator is wrapped in power conductor and differential signal conductors outside, described Aluminium foil layer is wrapped on the outside of insulator corresponding to differential signal conductors, it is characterised in that：The cable is also wrapped in ground connection Conductor is connected with the superconduction graphite layer on the outside of aluminium foil layer, the earth conductor with superconduction graphite layer.

2. cable according to claim 1, it is characterised in that：The superconduction graphite layer is kneaded the work of extrusion using physics Skill is made.

3. cable according to claim 1, it is characterised in that：The cable is flexible flat cable, differential signal conductors It is arranged between earth conductor and power conductor.

4. cable according to claim 1, it is characterised in that：The cable only has an earth conductor.

5. cable according to claim 1, it is characterised in that：The earth conductor is arranged in adjacent two pairs of differential signals and led Between body, there is provided signal and power ground.

6. cable according to claim 1, it is characterised in that：The cable, which is additionally provided with, to be wrapped on the outside of superconduction graphite layer Insulation sheath.

7. the cable described in any one in claim 1-5, it is characterised in that：The earth conductor, power conductor, The spacing of differential signal conductors is identical.