CN106856106A

CN106856106A - Flat cable

Info

Publication number: CN106856106A
Application number: CN201710092065.7A
Authority: CN
Inventors: 陈亿昌
Original assignee: Alltop Electronics Suzhou Co Ltd; Alltop Technology Co Ltd
Current assignee: Alltop Electronics Suzhou Co Ltd; Alltop Technology Co Ltd
Priority date: 2017-02-21
Filing date: 2017-02-21
Publication date: 2017-06-16

Abstract

The invention provides a kind of flat cable, it includes the first wire being disposed adjacent and the second wire, and first wire and the second wire have the conductor and the clad for being coated on conductor periphery positioned at center position respectively.Copper material of the conductor by conductance more than or equal to 50% is made, and the clad is coated on the first clad of conductor periphery and is coated on the second clad of the first clad periphery respectively.The flat cable also includes being coated on the external coating on the outside of first wire and the second wire simultaneously.

Description

Flat cable

Technical field

The present invention relates to a kind of flat cable, more particularly to a kind of preferable flat cable of electric conductivity.

Background technology

In 3C industries, transmission cable can be used as the medium being electrically connected between two electronic installations and the carrying out that can stablize Desired signal transmission operation, therefore, transmission cable is generally applicable to various electronic installations.Wherein with USB, HDMI, The transmission cable of the interfaces such as DVI, Displayport connection has the advantages that transmission rate is high, distance is remote, quality is high and receives big Crowd likes that usage quantity also increasingly increases.Grade transmission cable inside has a plurality of plain conductor, and plain conductor outside cladding is exhausted Edge layer, to avoid plain conductor between be short-circuited phenomenon.

However, with the development of computer technology, the speed of the electronic product data such as hard disc of computer and mainboard transmission is got over Come faster, transmission frequency also more and more higher, in high frequency, ultra-high-frequency data transmission field, the electric conductivity stability of transmission cable Also it is extremely important, in case causing the loss of electronic product data under the influence of external environment condition.The conductor of conventional transmission cable is big Many to be made of brass, electric conductivity is not ideal enough.

In view of this, it is necessory to be further improved to conventional flat cable, to solve the above problems.

The content of the invention

It is an object of the invention to provide a kind of flat cable, the conductor of the flat cable is more than or equal to using conductance 50% copper material is made, and can meet the requirement of electric conductivity.

For achieving the above object, the invention provides a kind of flat cable.The flat cable is included side by side and phase The first wire and the second wire that neighbour is set, first wire and the second wire have the conductor positioned at center position respectively With the clad for being coated on conductor periphery；Copper material of the conductor by conductance more than or equal to 50% is made, the clad difference Including being coated on the first clad of conductor periphery and being coated on the second clad of the first clad periphery, the flat cable Also include being coated on the external coating on the outside of first wire and the second wire simultaneously.

As a further improvement on the present invention, copper alloy of the conductor by resistance less than 361 Ω/Km is made.

As a further improvement on the present invention, copper alloy of the conductor by copper content more than 98% is made.

As a further improvement on the present invention, copper alloy of the conductor by conductance more than 90% is made.

As a further improvement on the present invention, the conductor is made up of high-conductivity copper alloy.

As a further improvement on the present invention, the conductor by conductance by 100% red metal is made.

As a further improvement on the present invention, the flat cable is also included with first wire and the second wire side by side The privates of setting, adjacent first wire of the privates or the second wire are set, and also have and be located at center The conductor at place is also coated on the outside of the privates simultaneously with the clad for being coated on conductor periphery, the external coating.

As a further improvement on the present invention, first wire and the second wire constitute Difference signal pair, the described 3rd Wire is earth lead.

As a further improvement on the present invention, between the privates and the center of the first adjacent wire or the second wire Away from identical with the center spacing of the first wire and the second wire.

As a further improvement on the present invention, first wire, the second wire, the center of privates are arranged in same Straight line.

The beneficial effects of the invention are as follows：Flat cable of the invention is made by the copper material using conductance more than or equal to 50% It is the conductor of wire so that the electric conductivity of flat cable preferably, disclosure satisfy that the requirement of electric conductivity.

Brief description of the drawings

Fig. 1 is the schematic perspective view of a preferred embodiment of flat cable of the present invention.

Fig. 2 is the cross-sectional view of flat cable shown in Fig. 1.

Specific embodiment

Refer to shown in Fig. 1 and Fig. 2, be a preferred embodiment of flat cable of the present invention 100.The flat cable 100 At least include a wire group 1, the first wire 11 and the second wire 12 that the wire group 1 includes side by side and is disposed adjacent.

The flat cable 100 also includes the privates 2 being arranged side by side with the wire 12 of first wire 11 and second. The adjacent wire 12 of first wire 11 or second of the privates 2 is set.Wherein, the structure of 11 and second wire of the first wire 12 Into Difference signal pair, for transmitting high-frequency signal；The privates 2 is earth lead, may be used to suppress by Difference signal pair The signal interference of side.The center of first wire 11, the second wire 12 and privates 2 is arranged in always on so that The global shape of flat cable 100 be in flat, and the flat cable 100 cross section left and right and above-below direction on structure Symmetrically.

In present embodiment, the flat cable 100 includes some groups by the spaced institute of some earth leads 2 Difference signal pair is stated, and the Difference signal pair is arranged side by side.The Difference signal pair is designed with the earth lead 2 It is spaced setting, so that the earth lead 2 can produce isolation to two adjacent groups Difference signal pair, prevents from interfering.

First wire 11, the second wire 12 and privates 2 have the and of conductor 13 positioned at center position respectively It is coated on the clad of the periphery of conductor 13.Wherein, copper material of the conductor 13 by conductance more than or equal to 50% is made.It is specific next Say, copper alloy of the conductor 13 by resistance less than 361 Ω/Km is made；Copper alloy of the conductor 13 by copper content more than 98% It is made；Copper alloy of the conductor 13 by conductance more than 90% is made.

It should be noted that：Conductance in this specification is according to International Annealed Copper Standard（IACS）Depending on.

In present embodiment, the copper material uses the conductance of high-conductivity copper alloy, the high-conductivity copper alloy to be more than or equal to 99%, the coefficient of heat conduction scope of the high-conductivity copper alloy is 0.927-0.935 Cal/cm²/cm/sec/℃。

Specifically, the high-conductivity copper alloy is the red metal that conductance is 100%, by by the conductor 13 be designed as by Conductance is made up of 100% red metal, so that electric conductivity and thermal conductivity are very well, plasticity is fabulous, and in follow-up detection The requirement of the resistance, copper content and conductance is disclosure satisfy that in journey.

The clad of the wire 12 of first wire 11 and second is coated on the first cladding of the periphery of conductor 13 respectively Layer 14 and the second clad 15 for being coated on the periphery of the first clad 14.In the present invention, the dielectric system of first clad 14 Dielectric coefficient of the number less than second clad 15.Specifically, first clad 14 use dielectric coefficient for 2.1 to 2.4 insulating materials is made, and to provide conductor 13 preferable signal transmission environment, reduces the propagation delay of signal, reduces signal Between crosstalk, it is ensured that the high speed of signal is effectively transmitted, reduce signal attenuation.

Second clad 15 is set to that dielectric coefficient is of a relatively high, specially using the suction ripple by caning absorb electromagnetic wave Material is made suction ripple layer, whereby, it is possible to use suction ripple layer 15 absorbs the electromagnetic wave of extraneous radiation, effectively suppresses external electromagnetic and does Disturb, conductor 13 is effectively isolated with the external world, it is ensured that high frequency, ultra-high frequency signal transmission；Separately, the suction ripple layer 15 also has matter The performance such as light, heatproof, moisture-proof, anticorrosive is measured, and then can effectively protect the conductor 13 positioned at inner side, extend flat cable of the present invention 100 service life.

Separately, in present embodiment, because the privates 2 is set to earth lead, so that, on the one hand can be by its conductor 13 Diameter be set to the diameter of the conductor 13 different from the first wire 11 and the second wire 12, i.e., the conductor 13 of described earth lead 2 Diameter can be adjusted according to the impedance match situation of Difference signal pair, can be more than or less than the first wire 11 and second The diameter of the conductor 13 of wire 12；On the other hand, the clad of earth lead 2 can be only set to one layer, the clad is used Insulating materials is made, and is constituted with the conductor 13 of the conductor 13 to earth lead 2 and the first adjacent wire 11 or the second wire 12 It is dielectrically separated from.

The flat cable 100 also includes being coated on outside first wire 11, the second wire 12 and privates 2 simultaneously External coating 3 of the side to carry out relative positioning and protect.In the present embodiment, the external coating 3 using weatherability preferably and The material of fatigue resistance is made, for example thermoplastic elastomer (TPE) TPE（Thermoplastic Elastomer）Material is made, with right Internal first wire 11, the second wire 12 and privates 2 form preferably protection, improve making for flat cable 100 of the present invention Use the life-span.Certainly, in other embodiments, the external coating 3 can also use PE（polyethylene）Material or other materials Material is made.

The dielectric coefficient of second clad 15 differs smaller with the dielectric coefficient of the external coating 3, enter without Overall dielectric coefficient on flat cable of the present invention 100 produces influence, it is ensured that high frequency signal transmission.

In the present invention, the privates 2 and the first adjacent wire 11 or the center spacing and first of the second wire 12 Wire 11 is identical with the center spacing of the second wire 12.The external diameter of conductor 13 of the wire 12 of first wire 11 and second is respectively provided with In 28 to 31 AWGs（AWG）In the range of；Wherein, when the external diameter of conductor 13 uses 28AWG, first wire 11 and second The center spacing of wire 12 is set to 0.51mm to 0.75mm；When the external diameter of conductor 13 uses 29AWG, the He of the first wire 11 The center spacing of the second wire 12 is set to 0.38mm to 0.75mm；When the external diameter of conductor 13 uses 30 to 31AWG, described first The center spacing of the wire 12 of wire 11 and second is set to 0.38mm to 0.62mm.

Set by the center spacing of the external diameter of above-mentioned conductor 13 and the wire 12 of corresponding first wire 11 and second, may be such that Differential impedance between first wire 11 and the second wire 12 is effectively reduced, coupling effect enhancing, it is ensured that high-frequency signal Transmit over long distances.

In sum, the conductor 13 of flat cable of the invention 100 is by the copper material system using conductance more than or equal to 50% Into（Specially red metal）, so that the electric conductivity of flat cable 100 is preferably, disclosure satisfy that the requirement of electric conductivity.

The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair It is bright to be described in detail, it will be understood by those within the art that, technical scheme can be modified Or equivalent, without deviating from the spirit and scope of technical solution of the present invention.

Claims

1. a kind of flat cable, including side by side and the first wire and the second wire that are disposed adjacent, first wire and second Wire has the conductor and the clad for being coated on conductor periphery positioned at center position respectively；It is characterized in that：The conductor Be made up more than or equal to 50% copper material of conductance, the clad be coated on respectively the first clad of conductor periphery with The second clad of the first clad periphery is coated on, the flat cable also includes being coated on first wire and the simultaneously External coating on the outside of two wires.

2. flat cable according to claim 1, it is characterised in that：Copper of the conductor by resistance less than 361 Ω/Km is closed Gold is made.

3. flat cable according to claim 1, it is characterised in that：Copper alloy of the conductor by copper content more than 98% It is made.

4. flat cable according to claim 1, it is characterised in that：Copper alloy of the conductor by conductance more than 90% It is made.

5. flat cable according to claim 1, it is characterised in that：The conductor is made up of high-conductivity copper alloy.

6. flat cable according to claim 5, it is characterised in that：The conductor is by red metal system that conductance is 100% Into.

7. flat cable according to claim 1, it is characterised in that：The flat cable also includes and first wire The privates being arranged side by side with the second wire, adjacent first wire of the privates or the second wire are set, and also have Have positioned at center position conductor and be coated on the clad of conductor periphery, the external coating is also coated on described the simultaneously The outside of three wires.

8. flat cable according to claim 7, it is characterised in that：First wire and the second wire constitute difference letter Number right, the privates is earth lead.

9. flat cable according to claim 7, it is characterised in that：The privates and the first adjacent wire or The center spacing of two wires is identical with the center spacing of the first wire and the second wire.

10. flat cable according to claim 9, it is characterised in that：First wire, the second wire, privates Center be arranged in same straight line.