CN208045140U

CN208045140U - Flat cable

Info

Publication number: CN208045140U
Application number: CN201820513318.3U
Authority: CN
Inventors: 张�杰; 蔡舟; 李腾飞
Original assignee: Bozhou Lanto Electronic Ltd
Current assignee: Bozhou Lanto Electronic Ltd
Priority date: 2018-04-09
Filing date: 2018-04-09
Publication date: 2018-11-02
Anticipated expiration: 2028-04-09

Abstract

The utility model is related to a kind of flat cables, it includes an at least power conductor, at least a pair of of differential signal conductors, epithelium in two layers, two layers of screen and two layers of outer epithelium, the differential signal conductors are clamped in this two layers between epithelium, the shielded layer is covered in the upper and lower surface of interior epithelium, the power conductor separates between left and right with epithelium in shielded layer and this two layers, two layers of outer epithelium is covered in the upper and lower surface of power conductor and shielded layer, two-layer screen layer is individually covered in the outside of differential signal conductors, increase the function of signal shielding and interference, improve signal transmitting quality.

Description

Flat cable

Technical field

The utility model is related to a kind of flat cables.

Background technology

Flexible flat cable has many advantages, such as that soft, random bending fold, thickness are thin, small, is widely used in various In electronic product, with the development of internet, broadband universalness, consumer proposes video, data, Transmitting of Multi-media Information The transmission requirement of higher high speed, Large Volume Data, signal shielding.

Utility model content

The purpose of this utility model is to provide a kind of flat cables for having and improving signal shielding function.

To realize foregoing purpose, the utility model adopts the following technical solution：A kind of flat cable comprising at least one electricity Source conductor, at least a pair of of differential signal conductors, epithelium, two-layer screen layer and two layers of outer epithelium, the differential signal are led in two layers Body is clamped in this two layers between epithelium, and the shielded layer is covered in the upper and lower surface of interior epithelium, the power conductor with Epithelium separates between left and right in shielded layer and this two layers, and two layers of outer epithelium is covered in the upper following table of power conductor and shielded layer Face.

The width of the power conductor is more than the width of differential signal conductors as a further improvement of the utility model,.

The outer epithelium is equipped with an opening as a further improvement of the utility model, and the shielded layer is exposed to opening, To with external ground connection.

The outer epithelium is equipped with an opening, the power conductor or difference letter as a further improvement of the utility model, Number conductor is exposed to opening, to realize the function of transmission power supply or signal with external connection.

The flat cable further includes an at least earth conductor, the ground connection as a further improvement of the utility model, Conductor is located at the side of epithelium in described two layers, and is clamped between two shielded layer, the earth conductor and shielded layer Electrical contact.

The width of the power conductor is more than the width of earth conductor as a further improvement of the utility model,.

The two-layer screen layer is made of the two panels shielding piece detached as a further improvement of the utility model, this two The left and right ends of shielding piece fit together respectively.

The two-layer screen layer is a piece of shielding piece as a further improvement of the utility model, which shields piece head and the tail End fits together.

The left and right ends of epithelium fit together respectively in described two as a further improvement of the utility model,.

The differential signal conductors of the utility model flat cable are clamped in this two layers between epithelium, the shielded layer It is covered in the upper and lower surface of interior epithelium, the power conductor separates between left and right with epithelium in shielded layer and this two layers, described two layers Outer epithelium is covered in the upper and lower surface of power conductor and shielded layer, and two-layer screen layer is individually covered in the outer of differential signal conductors Side increases the function of signal shielding and interference, improves signal transmitting quality.

Description of the drawings

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

Fig. 2 is the plan view of the utility model flat cable.

Specific implementation mode

It please refers to Fig.1 to shown in Fig. 2, the utility model flat cable 100, including an at least power conductor 10, at least one To differential signal conductors 20, an at least earth conductor 30, epithelium 40, two-layer screen layer 50 and two layers of outer epithelium 60 in two layers.

Power conductor 10, differential signal conductors 20 and earth conductor 30 or so are spaced apart.The width of power conductor 10 is more than Differential signal conductors 20 and earth conductor 30, are easily carried larger current.

Differential signal conductors 20 are clamped in this two layers between epithelium 40, and two-layer screen layer 50 is covered in epithelium in this two layers 40 upper and lower sides, earth conductor 30 are located at the side of epithelium 50 in this two layers, are clamped between the two-layer screen layer 50, ground connection is led Body 30 forms in electrical contact with shielded layer 50, and shielded layer 50 is the metal shield materials such as aluminium foil, copper foil or conductive fabric, two layers of shielding Layer 50 is made of the two shielding pieces detached, and the left and right ends of the two shieldings piece fit together or two-layer screen layer 50 is one Piece shields piece, and the two ends of the shielding piece 50 fit together, and realizes and is surrounded entirely to differential signal conductors 20.

An internal component, the internal component and electricity is collectively formed in differential signal conductors 20, interior epithelium 40 and shielded layer 50 Source conductor 10 or so is alternatively arranged, and two layers of outer epithelium 60 is fitted in the outside of the internal component and power conductor 10, wherein one layer Outer epithelium 60 is equipped with the opening 62 for being exposed to the outside of flat cable 100, and shielded layer 60 is exposed to the opening 62, to outside Ground path connection, certainly, in other modes, power conductor 10 or differential signal conductors 20 are exposed to opening 62, to With external connection to realize the function of transmission power supply or signal.

The utility model flat cable 100 is individually covered in the outer of differential signal conductors 20 by the way that two-layer screen layer 50 is arranged Side increases the function of signal shielding and interference, improves signal transmitting quality.

Although being example purpose, preferred embodiments of the present invention, the common skill of this field 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 improvements, additions and substitutions are possible.

Claims

1. a kind of flat cable comprising an at least power conductor, at least a pair of of differential signal conductors, epithelium in two layers, two layers Shielded layer and two layers of outer epithelium, it is characterised in that：The differential signal conductors are clamped in this two layers between epithelium, described Shielded layer is covered in the upper and lower surface of interior epithelium, and the power conductor separates between left and right with epithelium in shielded layer and this two layers, institute State the upper and lower surface that two layers of outer epithelium is covered in power conductor and shielded layer.

2. flat cable according to claim 1, it is characterised in that：The width of the power conductor is led more than differential signal The width of body.

3. flat cable according to claim 1, it is characterised in that：The outer epithelium is equipped with an opening, the shielded layer Be exposed to opening, to external ground connection.

4. flat cable according to claim 1, it is characterised in that：The outer epithelium is equipped with an opening, and the power supply is led Body or differential signal conductors are exposed to opening, to realize the function of transmission power supply or signal with external connection.

5. flat cable according to claim 1, it is characterised in that：The flat cable further includes that at least one ground connection is led Body, the earth conductor are located at the side of epithelium in described two layers, and are clamped between two shielded layer, and the ground connection is led Body is in electrical contact with shielded layer.

6. flat cable according to claim 5, it is characterised in that：The width of the power conductor is more than earth conductor Width.

7. flat cable according to claim 1, it is characterised in that：The shielding piece that the two-layer screen layer is detached by two panels The left and right ends of composition, two panels shielding piece fit together respectively.

8. flat cable according to claim 1, it is characterised in that：The two-layer screen layer is a piece of shielding piece, the screen The two ends for covering piece fit together.

9. flat cable according to claim 1, it is characterised in that：The left and right ends of epithelium are fitted in respectively in described two Together.