CN103427262B - Flexible circuit cable with more than two groups of bunches - Google Patents

Abstract

The invention provides a flexible circuit flat cable with more than two groups of bunches, wherein the first end of the flexible circuit flat cable is connected to a first connecting section, and the second end of the flexible circuit flat cable is connected to a second connecting section. The flat cable has a cluster section, and the cluster section is composed of a plurality of cluster lines cut along the extending direction of the flat cable with a predetermined cutting width. The cluster section of the circuit flat cable comprises at least two independent clusters, the independent clusters are divided into different signal groups according to the electric signals carried by each cluster of the circuit flat cable, and a plurality of clusters in the independent clusters can be wound by the winding member according to a predetermined winding mode. In addition, the surface of the circuit flat cable can be provided with a shielding conductive layer to prevent electromagnetic wave interference and control the impedance matching of signals in the circuit flat cable.

Description

There is the flexible circuit cable of group more than two boundling

Technical field

The present invention is that the structure about a kind of signal transmission flat cable designs, and has group more than two especially with regard to one The flexible circuit cable of boundling.

Background technology

In the various electronic installations used now, owing to holding wire transmitted data amount is increasing, therefore required Signal transmssion line quantity not only gets more and more, and the frequency of transmission signal is more and more higher, so that the differential mould in high-frequency transmission Formula (Differential Mode) is often designed to reduce electromagnetic interference (EMI), and such as USB or LVDS signal is the biggest Amount uses this transmission technology to reduce electromagnetic interference.But, after completing the assembling of these signal transmssion lines, the most all need Each signal transmssion line harness collected, on the one hand as location, to be on the other hand used as protection.Pass at signal now In defeated coil of wire bundle technology, mostly directly all being rolled by all of signal transmssion line, the rolling material of use is insulating cement The material of band or conductive fabric etc is as protection to wire rod in mechanism, to strengthen resistance to bending or the electromagnetism to high-frequency transmission wire rod Shielding is in case electromagnetic interference (EMI), although reduce the external environment electromagnetic interference to signal transmssion line, but because each signal passes The signal frequency that defeated line is carried is different, and the problem that there is also electromagnetic interference between the most each signal transmssion line, if by all of Signal transmssion line rolls in same boundling, the problem that may cause producing electromagnetic interference between each signal transmssion line.

And traditional bus-bar construction is usually the structure that several outer wires being covered with insulating barrier are formed a winding displacement side by side, can Apply and be used as signal transmission in many kind electric equipments, electronic equipment, computer equipment and communication equipment.This kind traditional When winding displacement is applied between dead joint member, do not have any problem, if but applying and needing answering of cooperation pivot structure When using occasion, i.e. cannot meet its demand.But, in the most many electronic equipments or communication equipment, the most often use and arrive Pivot structure.Such as in the structure design of the communication handset extensively used at present, its cover plate or screen are i.e. often with rotating shaft Structure is combined in mobile phone body.In order to the signal of telecommunication to be made is sent to this cover plate or screen by mobile phone body, have been developed at present The technology of boundling winding displacement solves traditional bus-bar construction cannot be by the problem of pivot structure.But the technology of boundling winding displacement will be all By pivot structure after wire body rolling, when using this technology, pivot structure needs sufficiently large space and allows institute's cable body by narrow Hole, therefore pivot structure is extremely limited in design.

Additionally, electronic product now is adapted space and the demand used, with frivolous and do not account in product design Space is main purpose.But the technology of boundling winding displacement can make board design be limited by many in layout.Because boundling In winding displacement, each signal transmssion line is when being connected to the signal contact position of circuit board, and each signal contact need to be laid at certain intervals On circuit board, rather than all at same block, but because institute's cable body rolls up the reason scratched together the most jointly, therefore each signal transmssion line Development length is longer, so that the increase of wire rod cost.And all signal transmssion lines is all scratched together with single rolling structure volume Mode can form a rolling body the biggest, so that can occupy great space on circuit boards so that electronic product cannot reach To more frivolous demand, and therefore circuit board also can cannot effectively utilize and be restricted in the design that space configures, and increases Add the degree of difficulty in design.

Summary of the invention

Edge this, the purpose of the present invention is i.e. to provide a kind of flexible circuit cable with group more than two boundling, in order to Improve circuit cable shortcoming in reality application.

The present invention solves that the technological means that problem of the prior art is used is to be gathered together by the plural bar in circuit cable Line is to form a cluster section along the bearing of trend of this circuit cable after cutting with a predetermined cutting width, and cluster section Include at least two independent boundlings, this circuit signal district that this independent boundling is carried according to the line of respectively gathering together of this circuit cable Separate different signal groups, such as power line group and holding wire group, and component can be scratched by this independent boundling with volume respectively Plural bar gather together line according to a predetermined volume torsion module formula rolling.

Power line group, earth lead group and holding wire group is separated via the technology used in the present invention means, up to To effectively reducing the effectiveness of electromagnetic interference influence holding wire group produced by power line group, and scratch component at volume Selection on can be respectively adopted one of insulant, conductive fabric, electromagnetic shielding material according to ensemble group, such as the volume of power line group Scratching component can use electromagnetic shielding material to intercept electromagnetic interference, and the volume of holding wire group scratches component then can use insulation material One of material, conductive fabric, electromagnetic shielding material.Additionally, because respectively gather together between line also easily because of the signal of transmission different frequency Produce the efficiency interfering problem and affect signal transmission, therefore further holding wire group area can be divided into high-frequency signal line Group and low frequency signal line-group group, produce between each signal when transmitting the signal of different frequency and interfere reducing line of gathering together Problem.Additionally, because winding displacement easily produces electrostatic through rotating shaft because of friction, the most also may be via the earth lead group of independence And suitable static guiding is connected to suitable place.

Another effect of the present invention is can to provide to have more side on designer's layout in circuit design and arrangement space Formula, divides into the independent boundling of unlike signal group via the present invention by signal transmssion line, can make the independence of each signal group Boundling requisite space when through pivot structure diminishes.And user can design the independent boundling of all groups all same on demand Time by same narrower bore, it is possible to by each independent boundling separate by narrower bore, make pivot structure the most flexible.

And in terms of the layout of circuit design, the signal group of each independent boundling can be respectively connecting to corresponding contact position Put, under the technology compared to boundling winding displacement, development length can be reduced, reduce wire rod cost, space configuration also has higher Flexibility ratio.And the independent boundling of each signal group is taken up space on circuit boards also compared to boundling winding displacement technology relatively little Xu Many, and can be in the layout of on circuit board according to designer's demand, reduce circuit board thickness so that electronic product in design can be more towards Frivolous demand.

Specific embodiment of the present invention, will be by with purgation embodiment and the attached explanation further in graphic work.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, embodiment will be described below The accompanying drawing used required in is briefly described, it should be apparent that, the accompanying drawing in describing below is only some of the present invention Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these Accompanying drawing obtains other accompanying drawing.

Fig. 1 is the structural representation of the flexible circuit cable showing that the present invention has group more than two boundling；

Fig. 2 is that in display Fig. 1, the first jointing and the second jointing can configure element inserted area and an adapter；

Fig. 3 is that in display Fig. 1, the first jointing and the second jointing can configure a connector；

Fig. 4 is that in display Fig. 1, the first jointing and the second jointing can configure an inserted terminal；

Fig. 5 is the first embodiment of the flexible circuit cable showing that the present invention has group more than two boundling；

Fig. 6 is the generalized section showing Tu5Zhong power line group；

Fig. 7 is the second embodiment of the flexible circuit cable showing that the present invention has group more than two boundling；

Fig. 8 is the 3rd embodiment of the flexible circuit cable showing that the present invention has group more than two boundling；

Fig. 9 is to show that the volume torsion module formula as a example by independent boundling 34B is for the most overlapped；

Figure 10 is to show that the volume torsion module formula as a example by independent boundling 34B is as random alignment.

Drawing reference numeral

1 first jointing

11 element inserted area

12 adapters

13 inserted terminals

2 second jointings

21 adapters

22 adapters

23 inserted terminals

3 circuit cables

31 first ends

32 second ends

33 cluster sections

331 gather together line

34A, 34B, 34C independence boundling

35 lines of cut

36 insulating barriers

37,38 screening conductive layer

371,381 hatch frame

Scratch component for 4A, 4B volume

5 rotating shafts

51 narrower bore

I bearing of trend

L power line group

L1, L2 power line

S holding wire group

S1, S2, S3, S4 holding wire

SH high-frequency signal line-group group

SH1, SH2, SH3 high-frequency signal line

SL low frequency signal line-group group

SL1, SL2, SL3 low frequency signal line

G earth lead group

Detailed description of the invention

Refer to Fig. 1, be the organigram of the flexible circuit cable with group more than two boundling of the present invention, this The flexible circuit cable of invention includes one first jointing 1,1 second jointing 2, circuit cable 33 and at least two Above volume scratches component 4A, 4B.

First jointing 1 and the second jointing 2 can be respectively designed to according to the different demands of reality application inserted terminal, The different kenel such as slot, welding ends, open end or component placement district.As in figure 2 it is shown, the first jointing 1 is element configuring area Section, its surface is provided with an element inserted area 11, is available for arranging a connector, and element configuration section can be joined according to graphic shown direction Put, the configuration of the most rotatable 90 degree of angles, and the second jointing 2 can be a connector 21.The first jointing shown in Fig. 3 1 can be a connector 12, and the second jointing 2 can be a connector 22.The first jointing 1 shown in Fig. 4 can be a grafting End 13, the second jointing 2 can be an inserted terminal 23, and inserted terminal can be the existing golden finger with a plurality of inserting foot position The connected structure of (Gordon Finger) or embossment (Sculpture) connected structure.

Circuit cable 3 has the first end 31 and the second end 32, and wherein the first end 31 is connected to the first jointing 1, and second End 32 is connected to the second jointing 2.The wire rod of circuit cable 3 can be selected for the film printing electronic cable of general merchandise, soft Property parallel conductor layout (Flexible Flat Cable, FFC), flexible printed wiring board (Flexible Printed Circuit, FPC) one of combination wire rod, more than electric wire, Teflon line, coaxial wire, mixed type wire rod or two of which, and electricity Road winding displacement 3 at least one surface has screening conductive floor, in order to anti electromagnetic wave interference the impedance of control circuit winding displacement internal signal Coupling.

First end 31 of circuit cable 3 and the second end 32 have a cluster section 33, and cluster section 33 is by plural number bar edge The plural bar that the parallel cut 35 of the bearing of trend I circuit cable 3 is formed with a predetermined cuts width cutting is gathered together line 331 Being formed, each line 331 of gathering together can independent and free bending.

The internal wire transmit with signal of line 331 of respectively gathering together, may be used to carry the signal of telecommunication, according to circuit cable 3 The signal of telecommunication that line 331 of respectively gathering together carries distinguishes different signal groups, and signal group at least can divide into power line group, connect Ground wire group, holding wire group, high-frequency signal line-group group, low frequency signal line-group group etc..These signal groups are selected from wherein two Group or more than two.

In the design of the present invention, it is that plural number bar is gathered together line 331 according to predetermined volume torsion module formula and a basis signal group Group rolls independent boundling 34A, the 34B accumulated respectively and is rolled, then scratches component 4A, 4B by independent boundling 34A, 34B with volume Rolled, wherein a independent boundling 34A single independent narrower bore of narrower bore 51 or by a shaft element 5, and described It is one of insulant, conductive fabric, electromagnetic shielding material that volume scratches component.

Additionally, rolled except above-mentioned proposed independent boundling 34A, 34B scratch component 4A, 4B with volume respectively, designer The most optional only wherein will scratch component 4A, 4B with volume and be rolled by an independent boundling 34A or independent boundling 34B.

Refer to Fig. 5, be the first embodiment of the flexible circuit cable with group more than two boundling of the present invention.As Shown in figure, ensemble group differentiation is a power line group L and a holding wire group S, wherein includes in this power line group L Power line L1, L2, and this holding wire group S includes holding wire S1, S2, S3, S4.Circuit cable is divided into electricity by the present embodiment Source line-group group and group of holding wire group two, affect owing to being easily generated electromagnetic interference between power line group and holding wire group Effectiveness, divides out by this two group can effectively reduce electromagnetic interference problem with different independent boundling 34A, 34B, additionally, When selecting volume to scratch component, designer also can freely select different materials Juan Naoge signal group, as selected electromagnetic shielding material The independent boundling 34A, the independent boundling 34B of holding wire group of Juan Nao power line signal group then select general insulant, lead Electricity cloth or electromagnetic shielding material volume are scratched, to completely cut off electromagnetic interference influence effectiveness produced by power signal line.

Refer to the generalized section of Fig. 6, Shi Tu5Zhong power line group L.As it can be seen, power line group L includes Power line L1, L2, cover an insulating barrier 36 on power line L1, L, and the upper surface of power line group L have a screening conductive Layer 37 and hatch frame 371, lower surface has a screening conductive layer 38 and hatch frame 381, and its screening conductive layer is in order to anti-electric Magnetic wave interference the impedance matching of control circuit winding displacement internal signal.

Refer to Fig. 7, be the second embodiment of the flexible circuit cable with group more than two boundling of the present invention.As Shown in figure, ensemble group differentiation is an earth lead group G and a holding wire group S, wherein includes in this earth lead group G Power line G1, G2, and this holding wire group S includes holding wire S1, S2, S3, S4.Circuit cable is divided into and is connect by the present embodiment Ground wire group and group of holding wire group two, because winding displacement easily produces electrostatic through rotating shaft because of friction, the most also may be through Suitable by independent earth lead group static guiding is connected to suitable place.

Refer to Fig. 8, the 3rd embodiment of the flexible circuit cable with group more than two boundling of the present invention.Such as figure Shown in, ensemble group differentiation is a power line group L, high-frequency signal line-group group SH and low frequency signal line-group group SL, wherein Including power line L1, L2 in this power line group L, high-frequency signal line-group group SH includes high-frequency signal line SH1, SH2, SH3, Low frequency signal line-group group includes low frequency signal line SL1, SL2, SL3.Ensemble group differentiation is high frequency by the present embodiment further Holding wire group and low frequency signal line-group group, except being easily generated electromagnetic interference and shadow between power line group and holding wire group Ring outside effectiveness, respectively gather together also easily to produce to interfere because of the signal of transmission different frequency between line 331 and ask Holding wire group area, so that affecting effectiveness, is divided into the independent boundling 34B of high-frequency signal line-group group to believe with low frequency by topic The independent boundling 34C of number line-group group, in addition to can lowering power line group and holding wire group produced electromagnetic interference, it is possible to keep away Exempt between high-frequency signal line-group group and low frequency signal line-group group because asking that the signal of telecommunication and producing of transmission different frequency interferes Topic affects effectiveness.Additionally, designer is the most also transmitted different electricity according to each signal group when selecting volume to scratch component Signal and select different materials, to reach to avoid to produce electromagnetic interference problem, as selected electromagnetic shielding material volume to scratch power line letter The independent boundling 34A of number group, selects general insulant, conductive fabric or electromagnetic shielding material volume to scratch high-frequency signal line-group group Independent boundling 34B, selects general insulant, conductive fabric or electromagnetic shielding material volume to scratch the independent boundling of low frequency signal line-group group 34C。

Such as Fig. 8, the cutting width of independent boundling 34A, 34B, 34C of each signal group can be according to designer's difference Demand Design For same widths or differ width.Designer is optional when designing cutting width to be cut in units of 1 line of gathering together, will All lines of gathering together are cut into each independent wire body, and also may select more than 2 line of gathering together is that unit is cut, and can increase designer and set The degree of utilization flexibly of meter circuit time space configuration.

As shown in FIG. 9 and 10, volume scratches component 4 line 331 of being gathered together by plural number bar when rolling, and it rolls up torsion module formula can be according to designer Different demands and circuit design mode selected with one of the most overlapped (as shown in Figure 9) or random alignment (as shown in Figure 10).

Embodiment provided above is only that the present invention is described, and is not used to limit the scope of the present invention, and all other do not take off The equivalence completed under disclosed spirit is modified or displacement, is intended to be limited solely by Claims scope.

Claims (5)

1. there is a flexible circuit cable for group more than two boundling, including:

One first jointing；

One second jointing；

One circuit cable, has the first end and the second end, and wherein said first end is connected to described first jointing, and described Two ends are connected to described second jointing, and described circuit cable includes flexible flat bus cable FFC, flexible printed wiring board FPC One of, there is between described first end and described second end of described circuit cable a cluster section, and described cluster section by Plural number bar is gathered together line institute group along the bearing of trend of described circuit cable with the plural bar that a predetermined cutting width cutting is formed Become, described each gather together line can independent and free bending, and line of respectively gathering together carry plural number the signal of telecommunication；

It is characterized in that:

The described cluster section of described circuit cable includes at least one first independent boundling and at least one second independent boundling, institute State the first independent boundling and the described signal of telecommunication that described second independent boundling carries according to line of gathering together described in described circuit cable Divide into a power line group and a holding wire group, wherein this power line group includes a plurality of power line, and at this A plurality of power line covers an insulating barrier, forms a screening conductive layer, described first independent boundling then at the surface of described insulating barrier And the line of gathering together of the described plural number bar in described second independent boundling scratches component with volume respectively and gives according to a predetermined volume torsion module formula Rolling；

Described first independent boundling and described second independent boundling are simultaneously by a narrower bore.

The flexible circuit cable with group more than two boundling the most according to claim 1, it is characterised in that described The cutting width of one independent boundling and described second independent boundling is identical.

The flexible circuit cable with group more than two boundling the most according to claim 1, it is characterised in that described The cutting width of one independent boundling and described second independent boundling differs.

The flexible circuit cable with group more than two boundling the most according to claim 1, it is characterised in that described volume Scratching component is one of insulant, conductive fabric, electromagnetic shielding material.

The flexible circuit cable with group more than two boundling the most according to claim 1, it is characterised in that described screen Cover conductive layer and include at least one hatch frame.