CN102117684B - Preparation method for low voltage differential signal transmission flexible flat cable and low voltage differential signal transmission flexible flat cable - Google Patents
Preparation method for low voltage differential signal transmission flexible flat cable and low voltage differential signal transmission flexible flat cable Download PDFInfo
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- CN102117684B CN102117684B CN 201010610368 CN201010610368A CN102117684B CN 102117684 B CN102117684 B CN 102117684B CN 201010610368 CN201010610368 CN 201010610368 CN 201010610368 A CN201010610368 A CN 201010610368A CN 102117684 B CN102117684 B CN 102117684B
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Abstract
The invention discloses a preparation method of a low voltage differential signal transmission flexible flat cable, which comprises the following steps: (1) segmenting a strip FFC (flexible flat cable) into a plurality of sections according to the set lengths; (2) trimming: respectively forming notches connected with a terminal block at two ends of the FFC by punching through a die; (3) arranging reinforcing plates and a foaming PP (propene polymer) layer: respectively sticking reinforcing plates for reinforcing the strength of the end part of the FFC on the other lateral surfaces at two end parts of the FFC, on which no notch is formed; coating a foaming PP layer between the two end parts of the FFC so as to increase the thickness of the FFC and further ensure that the characteristic impedance value of the FFC reaches 100+/-10 omega; (4) arranging an outer conducting copper foil; (5) arranging an inner conducting aluminum foil, coating a layer of inner conducting aluminum foil between the two end parts of the FFC and allowing the inner conducting aluminum foil to be contacted with the outer conducting aluminum foil; and (6) riveting and pressing the terminal block: respectively riveting and pressing the terminal blocks at two ends of the FFC, thereby obtaining the low voltage differential signal transmission flexible flat cable through assembling.
Description
Technical field
The invention belongs to soft arranging wire, be specifically related to a kind of low-voltage differential signal transmission soft arranging wire with good characteristic impedance and shield effectiveness.
Background technology
In the prior art, since the FFC wire rod have make microminiaturized, small and exquisite, highly dense integrated, save space, change externally stored program, line is simple, save human cost and flexible good, applying flexible, folding advantage, and the signal transferring material that adopts of inside television progressively changes the FFC wire rod into by common harness wire rod at present.But existing FFC wire rod great majority are not to satisfy very much instructions for use on the market at present, the FFC wire rod of selling on the market at present its wear no resistance, characteristic impedance do not reach instructions for use, and be not very desirable to the shield effectiveness of signal, the FFC wire rod of selling on the market at present also exists very large room for improvement.
Summary of the invention
The present invention be directed to the deficiency of above-mentioned common FFC wire rod, a kind of preparation method of low-voltage differential signal transmission soft arranging wire is provided, by using the method, can prepare a kind of low-voltage differential signal transmission soft arranging wire that can satisfy characteristic impedance, and this soft arranging wire can have good shield effectiveness, and very strong anti-wear performance is arranged.
The present invention also aims to provide a kind of by the prepared low-voltage differential signal transmission soft arranging wire of above-mentioned preparation method.
The technical scheme that the present invention adopts for achieving the above object is:
A kind of preparation method of low-voltage differential signal transmission soft arranging wire, it may further comprise the steps:
(1) rectangular FFC wire rod is divided into some sections by preseting length;
(2) trimming, with the described one FFC wire rod location that is divided into behind the preseting length, by mould the two ends of this FFC wire rod are gone out respectively one for the breach that is connected with an end seat, this breach is located at the same side of this FFC wire rod, is convenient to be communicated with the splicing ear of end seat so that the conductor in the FFC wire rod exposes the side of this FFC wire rod;
(3) establish stiffening plate and foaming PP layer, do not establish on pasting respectively on the another side of breach a stiffening plate of strengthening this FFC wire ends intensity at these FFC wire rod both ends, bag is established a foaming PP layer between the both ends of this FFC wire rod, the thickness of this foaming PP layer is identical with the thickness of described stiffening plate, has increased the thickness of FFC wire rod so that the characteristic impedance value of this FFC wire rod wire rod reaches 100 ± 10 ohm by foaming PP layer;
(4) establish and outer lead Copper Foil, sticking establishing led Copper Foil one outside respectively at described FFC wire rod two ends, and this outer end of leading Copper Foil is on this stiffening plate, and this outer other end of leading Copper Foil is on this foaming PP layer;
(5) lead aluminium foil in establishing, bag is established and is led aluminium foil in one deck between the both ends of described FFC wire rod, leads aluminium foil in this and leads Copper Foil outward and contact with described;
(6) riveting end seat, an end seat on the difference riveting of the two ends of this FFC wire rod, thereby be assembled into a low-voltage differential signal transmission soft arranging wire, contact terminal on this end seat contacts with conductor by the breach on the FFC wire rod, aluminum alloy sheet on this end seat shell outer led Copper Foil and is contacted with described, thereby the aluminum alloy sheet of ground connection, outside lead Copper Foil and in lead the loop that has formed conducting between the aluminium foil, play good shield effectiveness.
As a further improvement on the present invention, it is further comprising the steps of:
(7) assembling magnet ring, an end sheathed of the low-voltage differential signal transmission soft arranging wire behind riveting end seat plays the magnet ring of demagnetizing action, and described magnet ring is set in described outer leading on the Copper Foil;
(8) with this low-voltage differential signal transmission soft arranging wire location, on this low-voltage differential signal transmission soft arranging wire, stamp out successively a straight burr and a twill by mould, be convenient to this low-voltage differential signal transmission soft arranging wire in use as required doubling or bias.
As a further improvement on the present invention, carrying out step (2) before, this FFC wire rod is carried out electric performance test and tensile test, detect conduction, resistance to pressure and the insulation impedance of this FFC wire rod, this not short circuit of FFC wire rod, withstand voltage more than the 250V and insulation impedance be qualified more than 100,000,000; Detect between conductor in this FFC wire rod and the insulating barrier whether bonding firmly, the power that hauls that this FFC wire rod can bear is qualified greater than 20KN.
As a further improvement on the present invention, carrying out step (6) before, described end seat is being carried out CCD detect, detecting on the contact terminal of this end seat whether foreign matter, oxidation or breakage are arranged.
The prepared low-voltage differential signal transmission soft arranging wire of a kind of preparation method according to above-mentioned low-voltage differential signal transmission soft arranging wire, it comprises a FFC wire rod, the two ends of same side are respectively equipped with a breach on this FFC wire rod, conductor in this FFC wire rod exposes from this breach, these FFC wire rod both ends are not established on the another side of breach and are pasted with respectively a stiffening plate, wrap successively on the outer peripheral face of described FFC wire rod to be provided with in a foaming PP layer and one deck and lead aluminium foil, this foaming PP layer and in lead aluminium foil and be located between described two stiffening plates, leading Copper Foil one end outside two is separately fixed on the stiffening plate, this two outer other end of leading Copper Foil with described in lead aluminium foil and contact, there is an end seat at the two ends of described FFC wire rod respectively riveting, splicing ear in the described end seat is connected with conductor in the FFC wire rod by breach, and the aluminum alloy sheet on the described end seat shell is led Copper Foil and is connected outward with described.
As a further improvement on the present invention, described FFC wire rod comprises some conductors and an insulating barrier, and described conductor is set up in parallel in this insulating barrier.
As a further improvement on the present invention, described end seat comprises a shell, is provided with some splicing ears in this shell, thereby is provided with the aluminum alloy sheet that plays shielding action for ground connection in the outer peripheral face of this shell.
As a further improvement on the present invention, it also comprises a magnet ring, and this magnet ring is sheathed on outer leading on the Copper Foil.
As a further improvement on the present invention, described stiffening plate is identical with the thickness of foaming PP layer.
As a further improvement on the present invention, lead in described and be installed with the twill that a straight burr and of being convenient to this low-voltage differential signal transmission soft arranging wire doubling is convenient to this low-voltage differential signal transmission soft arranging wire bias on the aluminium foil.
Beneficial effect of the present invention is: have good anti-wear performance and shield effectiveness by the prepared low-voltage differential signal transmission soft arranging wire of the inventive method, characteristic impedance reaches 100 ± 10 ohm instructions for use.
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Description of drawings
Fig. 1 is structural representation Fig. 1 of the present invention;
Fig. 2 is structural representation Fig. 2 of the present invention;
Fig. 3 is structural representation Fig. 3 of the present invention.
Embodiment
Embodiment 1: see Fig. 1 to Fig. 3, and the preparation method of a kind of low-voltage differential signal transmission soft arranging wire of the present invention, it may further comprise the steps:
(1) rectangular FFC wire rod 1 is divided into some sections by preseting length;
(2) trimming, with described one FFC wire rod 1 location that is divided into behind the preseting length, by mould the two ends of this FFC wire rod 1 are gone out respectively one for the breach 11 that is connected with an end seat 6, this breach 11 is located at the same side of this FFC wire rod 1, is convenient to be communicated with the splicing ear of end seat 6 so that the conductor 12 in the FFC wire rod 1 exposes the side of this FFC wire rod 1;
(3) establish stiffening plate 2 and foaming PP layer 3, do not establish on pasting respectively on the another side of breach 11 stiffening plate 2 of strengthening this FFC wire rod 1 end intensity at these FFC wire rod 1 both ends, bag is established a foaming PP layer 3 between the both ends of this FFC wire rod 1, the thickness of this foaming PP layer 3 is identical with the thickness of described stiffening plate 2, has increased the thickness of FFC wire rod 1 so that the characteristic impedance value of this FFC wire rod 1 reaches 100 ± 10 ohm by foaming PP layer 3;
(4) establish and outer lead Copper Foil 4, sticking establishing led Copper Foil 4 one outside respectively at described FFC wire rod 1 two ends, and this outer end of leading Copper Foil 4 is on this stiffening plate 2, and this outer other end of leading Copper Foil 4 is on this foaming PP layer 3;
(5) lead aluminium foil 5 in establishing, bag is established and is led aluminium foil 5 in one deck between the both ends of described FFC wire rod 1, leads aluminium foil 5 in this and leads Copper Foil 4 outward and contact with described;
(6) riveting end seat 6, an end seat 6 on the difference riveting of the two ends of this FFC wire rod 1, thereby be assembled into a low-voltage differential signal transmission soft arranging wire, contact terminal on this end seat 6 contacts with conductor 12 by the breach 11 on the FFC wire rod 1, aluminum alloy sheet on these end seat 6 shells outer led Copper Foil 4 and is contacted with described, thereby the aluminum alloy sheet of ground connection, outside lead Copper Foil 4 and in lead the loop that has formed conducting between the aluminium foil 5, play good shield effectiveness.
It is further comprising the steps of:
(7) assembling magnet ring 7, an end sheathed of the low-voltage differential signal transmission soft arranging wire behind riveting end seat 6 plays the magnet ring 7 of demagnetizing action, and described magnet ring 7 is set in described outer leading on the Copper Foil 4;
(8) with this low-voltage differential signal transmission soft arranging wire location, on this low-voltage differential signal transmission soft arranging wire, stamp out successively a straight burr 8 and a twill 9 by mould, be convenient to this low-voltage differential signal transmission soft arranging wire in use as required doubling or bias.
Carrying out step (2) before, this FFC wire rod 1 is carried out electric performance test and tensile test, detect conduction, resistance to pressure and the insulation impedance of this FFC wire rod 1, this FFC wire rod 1 not short circuit, withstand voltage more than the 250V and insulation impedance be qualified more than 100,000,000; Detect between conductor 12 in this FFC wire rod 1 and the insulating barrier whether bonding firmly, the power that hauls that this FFC wire rod 1 can bear is qualified greater than 20KN.
Carrying out step (6) before, described end seat 6 is being carried out CCD detect, detecting on the contact terminal of this end seat 6 whether foreign matter, oxidation or breakage are arranged.
The prepared low-voltage differential signal transmission soft arranging wire of a kind of preparation method according to above-mentioned low-voltage differential signal transmission soft arranging wire, it comprises a FFC wire rod 1, the two ends of same side are respectively equipped with a breach 11 on this FFC wire rod 1, conductor 12 in this FFC wire rod 1 exposes from this breach 11, these FFC wire rod 1 both ends are not established on the another side of breach 11 and are pasted with respectively a stiffening plate 2, wrap successively on the outer peripheral face of described FFC wire rod 1 to be provided with in a foaming PP layer 3 and one deck and lead aluminium foil 5, this foaming PP layer 3 and in lead aluminium foil 5 and be located between described two stiffening plates 2, leading Copper Foil 4 one ends outside two is separately fixed on the stiffening plate 2, this two outer other end of leading Copper Foil 4 with described in lead aluminium foil 5 and contact, there is an end seat 6 at the two ends of described FFC wire rod 1 respectively riveting, splicing ear in the described end seat 6 is connected with conductor 12 in the FFC wire rod 1 by breach 11, aluminum alloy sheet on described end seat 6 shells outer led Copper Foil 4 and is connected with described, because aluminum alloy sheet ground connection, thereby aluminum alloy sheet, lead outward Copper Foil 4 and in lead the loop that has formed a conducting between the aluminium foil 5, can play good shield effectiveness, effectively shield outside signal and disturbed.
Described FFC wire rod 1 comprises some conductors 12 and an insulating barrier 13, and described conductor 12 is set up in parallel in this insulating barrier 13.
Described end seat 6 comprises a shell, is provided with some splicing ears in this shell, thereby is provided with the aluminum alloy sheet that plays shielding action for ground connection in the outer peripheral face of this shell.
It also comprises a magnet ring 7, and this magnet ring 7 is sheathed on outer leading on the Copper Foil 4, and this magnet ring 7 can play the effect of demagnetization.
Described stiffening plate 2 is identical with the thickness of foaming PP layer 3.
Lead in described and be installed with the twill 9 that a straight burr 8 and of being convenient to this low-voltage differential signal transmission soft arranging wire doubling is convenient to this low-voltage differential signal transmission soft arranging wire bias on the aluminium foil 5.
Have good anti-wear performance and shield effectiveness by the prepared low-voltage differential signal transmission soft arranging wire of the inventive method, characteristic impedance reaches 100 ± 10 ohm instructions for use.
As described in the embodiment of the invention, with preparation method and the low-voltage differential signal transmission soft arranging wire of other low-voltage differential signal transmission soft arranging wires of the same or similar structure of the present invention, all in protection range of the present invention.
Claims (10)
1. the preparation method of a low-voltage differential signal transmission soft arranging wire is characterized in that, it may further comprise the steps:
(1) rectangular FFC wire rod is divided into some sections by preseting length;
(2) trimming, with the described one FFC wire rod location that is divided into behind the preseting length, by mould the two ends of this FFC wire rod are gone out respectively one for the breach that is connected with an end seat, this breach is located at the same side of this FFC wire rod, is convenient to be communicated with the splicing ear of end seat so that the conductor in the FFC wire rod exposes the side of this FFC wire rod;
(3) establish stiffening plate and foaming PP layer, do not establish on pasting respectively on the another side of breach a stiffening plate of strengthening this FFC wire ends intensity at these FFC wire rod both ends, bag is established a foaming PP layer between the both ends of this FFC wire rod, the thickness of this foaming PP layer is identical with the thickness of described stiffening plate, has increased the thickness of FFC wire rod so that the characteristic impedance value of this FFC wire rod wire rod reaches 100 ± 10 ohm by foaming PP layer;
(4) establish and outer lead Copper Foil, sticking establishing led Copper Foil one outside respectively at described FFC wire rod two ends, and this outer end of leading Copper Foil is on this stiffening plate, and this outer other end of leading Copper Foil is on this foaming PP layer;
(5) lead aluminium foil in establishing, bag is established and is led aluminium foil in one deck between the both ends of described FFC wire rod, leads aluminium foil in this and leads Copper Foil outward and contact with described;
(6) riveting end seat, an end seat on the difference riveting of the two ends of this FFC wire rod, thereby be assembled into a low-voltage differential signal transmission soft arranging wire, contact terminal on this end seat contacts with conductor by the breach on the FFC wire rod, aluminum alloy sheet on this end seat shell outer led Copper Foil and is contacted with described, thereby the aluminum alloy sheet of ground connection, outside lead Copper Foil and in lead the loop that has formed conducting between the aluminium foil, play good shield effectiveness.
2. the preparation method of low-voltage differential signal transmission soft arranging wire according to claim 1 is characterized in that, it is further comprising the steps of:
(7) assembling magnet ring, an end sheathed of the low-voltage differential signal transmission soft arranging wire behind riveting end seat plays the magnet ring of demagnetizing action, and described magnet ring is set in described outer leading on the Copper Foil;
(8) with this low-voltage differential signal transmission soft arranging wire location, on this low-voltage differential signal transmission soft arranging wire, stamp out successively a straight burr and a twill by mould, be convenient to this low-voltage differential signal transmission soft arranging wire in use as required doubling or bias.
3. the preparation method of low-voltage differential signal transmission soft arranging wire according to claim 1, it is characterized in that, carrying out step (2) before, this FFC wire rod is carried out electric performance test and tensile test, detect conduction, resistance to pressure and the insulation impedance of this FFC wire rod, this not short circuit of FFC wire rod, withstand voltage more than the 250V and insulation impedance be qualified more than 100,000,000; Detect between conductor in this FFC wire rod and the insulating barrier whether bonding firmly, the power that hauls that this FFC wire rod can bear is qualified greater than 20KN.
4. the preparation method of low-voltage differential signal transmission soft arranging wire according to claim 1 is characterized in that, is carrying out step (6) before, described end seat is carried out CCD detect, and detects on the contact terminal of this end seat whether foreign matter, oxidation or breakage are arranged.
5. prepared low-voltage differential signal transmission soft arranging wire of preparation method of described low-voltage differential signal transmission soft arranging wire according to claim 1, it is characterized in that: it comprises a FFC wire rod, the two ends of same side are respectively equipped with a breach on this FFC wire rod, conductor in this FFC wire rod exposes from this breach, these FFC wire rod both ends are not established on the another side of breach and are pasted with respectively a stiffening plate, wrap successively on the outer peripheral face of described FFC wire rod to be provided with in a foaming PP layer and one deck and lead aluminium foil, this foaming PP layer and in lead aluminium foil and be located between described two stiffening plates, leading Copper Foil one end outside two is separately fixed on the stiffening plate, this two outer other end of leading Copper Foil with described in lead aluminium foil and contact, there is an end seat at the two ends of described FFC wire rod respectively riveting, splicing ear in the described end seat is connected with conductor in the FFC wire rod by breach, and the aluminum alloy sheet on the described end seat shell is led Copper Foil and is connected outward with described.
6. low-voltage differential signal transmission soft arranging wire according to claim 5 is characterized in that, described FFC wire rod comprises some conductors and an insulating barrier, and described conductor is set up in parallel in this insulating barrier.
7. low-voltage differential signal transmission soft arranging wire according to claim 5 is characterized in that, described end seat comprises a shell, is provided with some splicing ears in this shell, thereby is provided with the aluminum alloy sheet that plays shielding action for ground connection in the outer peripheral face of this shell.
8. low-voltage differential signal transmission soft arranging wire according to claim 5 is characterized in that, it also comprises a magnet ring, and this magnet ring is sheathed on outer leading on the Copper Foil.
9. low-voltage differential signal transmission soft arranging wire according to claim 5 is characterized in that, described stiffening plate is identical with the thickness of foaming PP layer.
10. low-voltage differential signal transmission soft arranging wire according to claim 5, it is characterized in that, lead being installed with the twill that a straight burr and of being convenient to this low-voltage differential signal transmission soft arranging wire doubling is convenient to this low-voltage differential signal transmission soft arranging wire bias on the aluminium foil in described.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010610368 CN102117684B (en) | 2010-12-23 | 2010-12-23 | Preparation method for low voltage differential signal transmission flexible flat cable and low voltage differential signal transmission flexible flat cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010610368 CN102117684B (en) | 2010-12-23 | 2010-12-23 | Preparation method for low voltage differential signal transmission flexible flat cable and low voltage differential signal transmission flexible flat cable |
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| CN102117684A CN102117684A (en) | 2011-07-06 |
| CN102117684B true CN102117684B (en) | 2013-04-24 |
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| CN 201010610368 Active CN102117684B (en) | 2010-12-23 | 2010-12-23 | Preparation method for low voltage differential signal transmission flexible flat cable and low voltage differential signal transmission flexible flat cable |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109509585A (en) * | 2017-09-15 | 2019-03-22 | 南京麒麟科学仪器集团有限公司 | The production method of multi-functional communications cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957426A (en) * | 2004-05-24 | 2007-05-02 | 索尼化学&信息部件株式会社 | Flexible flat cable |
| CN101174491A (en) * | 2006-11-02 | 2008-05-07 | 住友电气工业株式会社 | Flexible flat cable |
| CN201242906Y (en) * | 2008-05-13 | 2009-05-20 | 天瑞电子科技发展(昆山)有限公司 | Transmission line with preferred characteristic impedance easy to be folded |
| CN201311789Y (en) * | 2008-11-20 | 2009-09-16 | 天瑞电子（深圳）有限公司 | Structure for flexible flat cable (FFC) installation, fixation and isolation |
| CN201440345U (en) * | 2009-06-16 | 2010-04-21 | 佛山市顺德区禾惠电子有限公司 | Novel FFC line structure |
| CN201562479U (en) * | 2009-08-11 | 2010-08-25 | 佛山市顺德区禾惠电子有限公司 | EMI (Electromagnetic Interference) masking structure of FFC (Flexible Flat Cable) high frequency transmission line |
-
2010
- 2010-12-23 CN CN 201010610368 patent/CN102117684B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957426A (en) * | 2004-05-24 | 2007-05-02 | 索尼化学&信息部件株式会社 | Flexible flat cable |
| CN101174491A (en) * | 2006-11-02 | 2008-05-07 | 住友电气工业株式会社 | Flexible flat cable |
| CN201242906Y (en) * | 2008-05-13 | 2009-05-20 | 天瑞电子科技发展(昆山)有限公司 | Transmission line with preferred characteristic impedance easy to be folded |
| CN201311789Y (en) * | 2008-11-20 | 2009-09-16 | 天瑞电子（深圳）有限公司 | Structure for flexible flat cable (FFC) installation, fixation and isolation |
| CN201440345U (en) * | 2009-06-16 | 2010-04-21 | 佛山市顺德区禾惠电子有限公司 | Novel FFC line structure |
| CN201562479U (en) * | 2009-08-11 | 2010-08-25 | 佛山市顺德区禾惠电子有限公司 | EMI (Electromagnetic Interference) masking structure of FFC (Flexible Flat Cable) high frequency transmission line |
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Effective date of registration: 20170615 Address after: 402660 No. 5 standard factory building, Tongnan Industrial Park, Chongqing Patentee after: Chongqing Rui Sheng Electronics Co., Ltd. Address before: 523000 Guangdong province Dongguan city Humen Town Gate Village of Nan Fang Industrial Zone Patentee before: Dongguan Ruisheng Electric Wire & Cable Co., Ltd. |