CN202736538U - Flexible flat cable structure - Google Patents
Flexible flat cable structure Download PDFInfo
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- CN202736538U CN202736538U CN 201220315778 CN201220315778U CN202736538U CN 202736538 U CN202736538 U CN 202736538U CN 201220315778 CN201220315778 CN 201220315778 CN 201220315778 U CN201220315778 U CN 201220315778U CN 202736538 U CN202736538 U CN 202736538U
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- China
- Prior art keywords
- flexible flat
- insulating barrier
- flat cable
- separated time
- earth lead
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Abstract
The utility model provides a flexible flat cable structure which comprises a soft wire and a conductive layer, wherein the soft wire comprises a plurality of sub-wires; the sub-wires are stacked to each other to form an overlapping part; each sub-wire comprises a plurality of metal conductors which are in parallel arrangement and an insulating layer cladding the metal conductors; and the metal conductors comprise a plurality of signal conductors and at least one grounding conductor which is exposed to the outside from the insulating layer; and the conductive layer is wound around the overlapping part, and the conductive layer and the grounding conductor of each sub-wire are in electric conduction. By adopting the flexible flat cable structure provided by the utility model, electromagnetic wave interference (EMI) can be well prevented, and the impedance controlling capacity is improved, so as to solve the problem of existing customer complaints. At the same time, as cut clearances are directly formed on the grounding conductors, the structure is not affected by reduction of the distance between the plurality of flat copper wires in the soft wire, and the problem of cut sub-wire yield reduction is solved.
Description
Technical field
The utility model relates to a kind of flexible flat-type cable structure, relates in particular to a kind of flexible flat-type cable structure that prevents Electromagnetic Interference.
Background technology
Flexible flat cable (Flexible Flat Cable) referred to as flexible flat cable or FFC, is a kind of data cable structure that forms through the pressing of high-tech automation equipment production line with PET insulating material and zinc-plated flat copper wire as thin as a wafer.Flexible flat cable is that assembly is used in a kind of signal transmission, itself has the advantages such as arbitrarily deflection, high signal transmission capabilities, therefore is widely used in many electronic products.
General flexible flat cable is divided into three-decker, from top to bottom is sequentially the overlapped way of insulating barrier, conductor layer and lower insulating barrier, and several flat copper wire are arranged in parallel to separate and arrange in the conductor layer, and its end exposes to the flexible flat cable rear and front end and connects a little with formation.Along with consumer electronics constantly towards light, thin, short, little future development, in order to cooperate the Miniaturization Design of portable electronic devices, necessarily require the size of the transverse width of flexible flat cable to dwindle.Therefore develop as shown in Figure 1 bus-bar construction with regard to those skilled in the art, it utilizes cutter cutting separated time flexible flat cable 1 stage casing to form several rectangular cables 11, with these a little rectangular cable 11 bendings and parallel overlapping to form stack architecture 12, because this stack architecture 12 can so that flexible flat cable 1 original transverse width W1 is reduced into W2, so can solve the problem that general flexible flat cable can't be filled in the small size space.It is at random that the overlapping formed stack architecture 12 of those rectangular cables 11 bendings must will fix to avoid rectangular cable 11 to get loose, the existing general practice utilize adhesive tape 2 be wound in stack architecture 12 on every side to reach the purpose of fixing rectangular cable 11.
Yet; although this flexible flat cable 1 can solve the problem that general existing flexible flat cable can't be filled in the small size space; but because the protection structure of any prevention Electromagnetic Interference (EMI) is not set; therefore be easy to be subject to Electromagnetic Interference and cause bad impact, and then cause the visitor to tell the generation of problem.In addition, along with the impact of the spacing downsizing between several flat copper wire in the flexible flat cable 1, when utilizing cutter cutting separated time flexible flat cable 1, can have easily the problem that cuts to because of carelessness flat copper wire to produce, and then the yield that causes cutting separated time descend.
The utility model content
The purpose of this utility model is to provide a kind of flexible flat-type cable structure; flexible flat cable with separated time stack architecture; the protection structure of prevention Electromagnetic Interference is set, prevents from cutting the separated time yield along with the problem that descends apart from the impact of downsizing between several flat copper wire in the flexible flat cable produces.
For achieving the above object, this is practical newly to provide a kind of flexible flat-type cable structure, comprising:
One flexible flat cable, described flexible flat cable has several separated times, the mutual storehouse of those separated times is to form an overlapping portion, respectively this separated time comprises several plain conductors that are arranged in parallel and the insulating barrier that coats those plain conductors, and those plain conductors comprise several signal conductors and at least one earth lead, and this earth lead exposes to this insulating barrier; And
One conductive layer, be surrounded on this overlapping portion around, this earth lead of this conductive layer and this separated time respectively forms and electrically conducts.
Described insulating barrier comprise the upper and lower surface that is covered in those plain conductors one on insulating barrier and insulating barrier once, this earth lead is arranged at a side of this separated time so that a side open of this earth lead insulating barrier and this time insulating barrier on this.
Those plain conductors of described separated time comprise two earth leads that are positioned at the outside and are positioned at those middle signal conductors that two these earth leads are arranged at respectively the dual side-edge of this separated time to expose to insulating barrier and this time insulating barrier on this.
Forming this overlapping portion, and the width of this separated time equals the width of another this separated time to the overlapping spread configuration of lower insulating barrier of described separated time on the upper insulating barrier of another this separated time, the side of two earth leads lay respectively at this overlapping portion about two sides.
Be provided with a conducting resinl between described conductive layer and this overlapping portion, this conducting resinl electrically conduct this conductive layer and this earth lead.
Also comprise: a connector joint, be arranged at an end of this flexible flat cable, this adapter connector comprises a lower house and a upper shell, the end of those plain conductors of this flexible flat cable exposes to this insulating barrier and is used for forming several conductive junction points, this end of this flexible flat cable is located between this lower house and this upper shell and exposes those conductive junction points, forms a line-end connector.
Described flexible flat cable utilizes several cutting seams to extend that along the axis direction of this earth lead this flexible flat cable cutting separated time is formed those separated times, and each cutting seam is located on this earth lead.
The width of this earth lead after the described cutting seaming and cutting of process are cut is less than the width of this signal conductor.
Each described cutting seam is positioned on the center line of this earth lead, the width of this earth lead equal this signal conductor width 1/2nd.
Described cutting is stitched between the rear and front end of this flexible flat cable and is not cut the rear and front end of wearing this flexible flat cable, those separated times are formed between the rear and front end of this flexible flat cable, those separated times form this overlapping portion through after folding, and the width of this overlapping portion is less than the width of this flexible flat cable.
The beneficial effects of the utility model: the utility model flexible flat-type cable structure utilizes flexible flat cable will cut in the separated time to stitch in cutting directly to be formed on the earth lead, so that the earth lead that each separated time comprises can expose to insulating barrier, and then utilize a conductive layer be wound in separated time overlapping portion that storehouse forms around, the earth lead formation of conductive layer and each separated time is electrically conducted, thereby reach the purpose of prevention Electromagnetic Interference (EMI), and so that the control ability of impedance (Impedance) promotes the problem of telling to solve existing visitor.Simultaneously, because the cutting seam directly is formed on the earth lead, therefore can not be subject to the impact of the spacing downsizing between several flat copper wire in the flexible flat cable, so can solve the problem that cutting separated time yield descends.
In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation usefulness, the utility model is limited.
Description of drawings
Below in conjunction with accompanying drawing, by embodiment of the present utility model is described in detail, will make the technical solution of the utility model and other beneficial effect apparent.
In the accompanying drawing,
Fig. 1 is for having the vertical view after flexible flat cable folds through the cutting separated time now.
Fig. 2 is that the utility model flexible flat-type cable structure is through the stereogram of cutting separated time.
Fig. 3 is the vertical view that the part of the flexible flat-type cable structure among Fig. 2 is amplified.
Fig. 4 is that flexible flat-type cable structure among Fig. 2 is through the stereogram of bending after stacked.
Fig. 5 is that flexible flat-type cable structure among Fig. 4 is along the profile of AA line segment.
Embodiment
Technological means and the effect thereof taked for further setting forth the utility model are described in detail below in conjunction with the preferred embodiments of the present invention and accompanying drawing thereof.
Please refer to shown in Fig. 2 and 3, the utility model provides a kind of flexible flat-type cable structure, it comprises a flexible flat cable 3, reaching the insulating barrier 32 that coats up and down those plain conductors 31 by several plain conductors 31 that are arranged in parallel is formed, wherein those plain conductors 31 comprise several signal conductors 311 and several earth leads 312, insulating barrier 32 comprises the upper insulating barrier 321 and lower insulating barrier 322 of the upper and lower surface that is covered in those plain conductors 31, and flexible flat cable 3 utilizes several cutting seams 30 to extend the remaining limit 33 ' that forms several separated times 33 and be positioned at two sides with flexible flat cable 3 cutting separated times along the axis direction of plain conductor 31.
The spacing size that those plain conductors are 31 is because the impact of downsizing is contracted to the width less than plain conductor 31, therefore the utility model directly is arranged at each cutting seam 30 on each earth lead 312 among those plain conductors 31, but not on the insulating barrier 32 of the pitch area that plain conductor 31 is not set of prior art, so just can effectively solve the problem of the cutting separated time yield decline of prior art.
In the present embodiment, because the width of each strip metal wire 31 about equally, it is the width that the width of earth lead 312 is substantially equal to signal conductor 311, the width of the earth lead 312 after therefore cutting through cutting seam 30 is less than the width of signal conductor 311, wherein each cutting seam 30 is positioned on the center line of earth lead 312, thus the width of earth lead 312 be substantially equal to signal conductor 311 width 1/2nd.In addition, those cutting seams 30 are between the rear and front end of flexible flat cable 3 and do not cut the rear and front end of wearing flexible flat cable 3, and those separated times 33 are formed between the rear and front end of flexible flat cable 3.
See also Fig. 4 and 5, mutual storehouse is to form an overlapping portion 34 after those separated times 33 process bendings, remaining limit 33 ' then is can select arbitrarily to stay or remove, select in the present embodiment the directly remaining limit 33 ' of excision, the width of this overlapping portion 34 is less than the width of flexible flat cable 3, each bar separated time 33 comprises the four strip metal wires 31 that are arranged in parallel and the insulating barrier 32 that coats four strip metal wires 31, this four strip metals wire 31 comprises two signal conductor 311 in the middle of being positioned at and is positioned at two earth leads 312 in the outside, and two earth leads 312 are arranged at respectively the dual side-edge of separated time 33 so that a side of earth lead 312 can expose to insulating barrier 321 and lower insulating barrier 322.
In the present embodiment, each bar separated time 33 comprises the four strip metal wires 31 that are arranged in parallel, so be not limited to this, also can be designed to comprise the plain conductor 31 of other number, basically the number of the plain conductor 31 that comprises of each bar separated time 33 is more, and it is large that the width of its formed overlapping portion 34 also just and then becomes together, and along with the number of signal conductor 311 becomes many, also can between several signal conductors 311, set up again an earth lead 312, and cutting seam 30 is not set on this earth lead 312.
These a little separated times 33 are in the present embodiment from top to bottom sequentially with the first separated time 33, the address mode of the second separated time 33 and 3-point line 33 illustrates, wherein the lower insulating barrier 322 overlapping spread configurations of the first separated time 33 are on the upper insulating barrier 321 of the second separated time 33, the lower insulating barrier 322 overlapping spread configurations of the second separated time 33 are on the upper insulating barrier 321 of 3-point line 33, so repeat storehouse to form this overlapping portion 34, and the width of the first separated time 33 is substantially equal to the width of the second separated time 33, that is each separated time 33 all includes the plain conductor 31 of equal amount, the side of two earth leads 312 lay respectively at overlapping portion 34 about two sides, so so that the relative position off normal of each separated time 33 reduces, make the electrical characteristic of overlapping portion 34 of flexible flat cable 3 easily controlled.
In addition, a connector joint (not shown) can be set in addition in an end of flexible flat cable 3, this adapter connector comprises a lower house and a upper shell, the end of those plain conductors 31 of this flexible flat cable 3 exposes to insulating barrier 32 to form several conductive junction points 313, and the end of flexible flat cable 3 is located between lower house and the upper shell and exposes those conductive junction points 313 to form a line-end connector.
In sum, the utility model provides a kind of flexible flat-type cable structure, utilizing flexible flat cable will cut seam in the cutting separated time directly is formed on the earth lead, the earth lead that each separated time is comprised can expose to insulating barrier, and then utilize a conductive layer be wound in the formed overlapping portion of separated time storehouse around, the earth lead formation of conductive layer and each separated time is electrically conducted, so just can reach the purpose of prevention Electromagnetic Interference (EMI), and so that the control ability of impedance (Impedance) promotes, tell problem to solve existing visitor.In addition, because the cutting seam directly is formed on the earth lead, therefore can not be subject to the impact of the spacing downsizing between the flat copper wire in the flexible flat cable, so can solve the problem that cutting separated time yield descends.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection range of the utility model claim.
Claims (10)
1. a flexible flat-type cable structure is characterized in that, comprising:
One flexible flat cable, described flexible flat cable has several separated times, the mutual storehouse of those separated times is to form an overlapping portion, respectively this separated time comprises several plain conductors that are arranged in parallel and the insulating barrier that coats those plain conductors, and those plain conductors comprise several signal conductors and at least one earth lead, and this earth lead exposes to this insulating barrier; And
One conductive layer, be surrounded on this overlapping portion around, this earth lead of this conductive layer and this separated time respectively forms and electrically conducts.
2. flexible flat-type cable structure as claimed in claim 1, it is characterized in that, described insulating barrier comprise the upper and lower surface that is covered in those plain conductors one on insulating barrier and insulating barrier once, this earth lead is arranged at a side of this separated time so that a side open of this earth lead insulating barrier and this time insulating barrier on this.
3. flexible flat-type cable structure as claimed in claim 2, it is characterized in that, those plain conductors of described separated time comprise two earth leads that are positioned at the outside and are positioned at those middle signal conductors that two these earth leads are arranged at respectively the dual side-edge of this separated time to expose to insulating barrier and this time insulating barrier on this.
4. flexible flat-type cable structure as claimed in claim 3, it is characterized in that, the overlapping spread configuration of lower insulating barrier of described separated time on the upper insulating barrier of another this separated time to form this overlapping portion, and the width of this separated time equals the width of another this separated time, the side of two earth leads lay respectively at this overlapping portion about two sides.
5. flexible flat-type cable structure as claimed in claim 1 is characterized in that, is provided with a conducting resinl between described conductive layer and this overlapping portion, this conducting resinl electrically conduct this conductive layer and this earth lead.
6. flexible flat-type cable structure as claimed in claim 1 is characterized in that, also comprises:
A connector joint, be arranged at an end of this flexible flat cable, this adapter connector comprises a lower house and a upper shell, the end of those plain conductors of this flexible flat cable exposes to this insulating barrier and is used for forming several conductive junction points, this end of this flexible flat cable is located between this lower house and this upper shell and exposes those conductive junction points, forms a line-end connector.
7. such as each described flexible flat-type cable structure among the claim 1-6, it is characterized in that, described flexible flat cable utilizes several cutting seams to extend that along the axis direction of this earth lead this flexible flat cable cutting separated time is formed those separated times, and each cutting seam is located on this earth lead.
8. flexible flat-type cable structure as claimed in claim 7 is characterized in that, the width of this earth lead after cutting through described cutting seaming and cutting is less than the width of this signal conductor.
9. flexible flat-type cable structure as claimed in claim 7 is characterized in that, each described cutting seam is positioned on the center line of this earth lead, the width of this earth lead equal this signal conductor width 1/2nd.
10. flexible flat-type cable structure as claimed in claim 7, it is characterized in that, described cutting is stitched between the rear and front end of this flexible flat cable and is not cut the rear and front end of wearing this flexible flat cable, those separated times are formed between the rear and front end of this flexible flat cable, those separated times form this overlapping portion through after folding, and the width of this overlapping portion is less than the width of this flexible flat cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315778 CN202736538U (en) | 2012-07-02 | 2012-07-02 | Flexible flat cable structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315778 CN202736538U (en) | 2012-07-02 | 2012-07-02 | Flexible flat cable structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736538U true CN202736538U (en) | 2013-02-13 |
Family
ID=47662213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220315778 Expired - Fee Related CN202736538U (en) | 2012-07-02 | 2012-07-02 | Flexible flat cable structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202736538U (en) |
-
2012
- 2012-07-02 CN CN 201220315778 patent/CN202736538U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150702 |
|
| EXPY | Termination of patent right or utility model |