CN110070960B - Flexible flat cable with 0.3mm center distance and manufacturing method thereof - Google Patents
Flexible flat cable with 0.3mm center distance and manufacturing method thereof Download PDFInfo
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- CN110070960B CN110070960B CN201910279963.2A CN201910279963A CN110070960B CN 110070960 B CN110070960 B CN 110070960B CN 201910279963 A CN201910279963 A CN 201910279963A CN 110070960 B CN110070960 B CN 110070960B
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- flexible flat
- flat cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/012—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing wire harnesses
- H01B13/01254—Flat-harness manufacturing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
- H01B7/0846—Parallel wires, fixed upon a support layer
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Abstract
The invention discloses a flexible flat cable with a 0.3mm center distance and a manufacturing method thereof, wherein the flexible flat cable comprises a flexible flat cable body and a reinforcing plate, wherein a plurality of conductors are uniformly distributed in the flexible flat cable body, the center distance between two adjacent conductors is 0.3mm, the width of each conductor is 0.15-0.20 mm, and the thickness of each conductor is 0.025-0.050 mm. According to the invention, the hot-melt leather film attaching technology is adopted to produce the flexible flat cable with the center distance of 0.3mm, the application of chemical substances is not involved in the whole production process, the environment and the personnel health are not harmed, and the flexible flat cable with the center distance of less than 0.3mm does not exist in the current market, so that the technical scheme provided by the invention fills the market blank and carries out technical innovation. The width of the conductor of the flexible flat cable is 0.15-0.20 mm, while the width of the conductor of the FPC in the prior art is only 0.1mm, so the current resistance of the flexible flat cable is far greater than that of the FPC in the prior art.
Description
Technical Field
The invention relates to the field of cables, in particular to a flexible flat cable with a 0.3mm center distance.
Background
Flexible Flat Cable Flexible Flat Cable (FFC) is one kind with PET insulating material and extremely thin tin-plated Flat copper line, through the novel data Cable that high-tech automation equipment production line pressfitting formed, has advantages such as soft, the bending is folding at will, thickness is thin, small, connect simple, dismantle convenient, the easy electromagnetic shield (EMI) of solving.
In practical use, the cable shown in fig. 1 for many mobile phone type connections includes first conductors and second conductors arranged in a staggered manner, the minimum width of the first conductors and the minimum width of the second conductors are 0.1mm, the cable uses FPC (printed circuit made of flexible insulating base material) with 0.3mm center-to-center distance, i.e. the center-to-center distance between two adjacent first conductors, but the FPC product has at least the following disadvantages:
1) the production cost is higher;
2) the FPC is formed by chemical corrosion processing and has certain harm to the environment;
3) in order to avoid the design of 0.3mm center distance, the conductor width of a product partial area is only 0.1mm, so that the current resistance of the FPC is far weaker than that of the FFC with the conductor width of 0.15-0.20 mm.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention discloses a flexible flat cable with a 0.3mm center distance.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the embodiment of the invention discloses a flexible flat cable with a 0.3mm center distance, which comprises a flexible flat cable body and a reinforcing plate, wherein a plurality of conductors are uniformly distributed in the flexible flat cable body, the center distance between two adjacent conductors is 0.3mm, the width of each conductor is 0.15-0.20 mm, and the thickness of each conductor is 0.025-0.050 mm.
In a preferred embodiment of the present invention, the conductor is a gold-plated copper conductor.
In a preferred embodiment of the present invention, the conductor is a flat conductor.
The embodiment of the invention also discloses a manufacturing method of the flexible flat cable with the center distance of 0.3mm, which comprises the following steps:
step 1) material preparation: providing a conductor with the width of 0.15-0.20 mm and the thickness of 0.025-0.050 mm, wherein the conductor is a flat conductor;
step 2) attaching: uniformly arranging a plurality of conductors in the step 1) according to a set intermediate distance, and then sequentially attaching the plurality of conductors with a hot-melt film and a reinforcing plate together to form an intermediate material coil, wherein the center distance between two adjacent conductors is 0.3 mm;
step 3), electroplating: coiling the intermediate material prepared in the step 2) onto electroplating equipment for electroplating treatment, wherein only the exposed part of the conductor is electroplated during electroplating, and the part of the conductor covered by the hot-melt film is not electroplated, so that a flexible flat cable coil is prepared;
step 4), size detection: confirming whether the edge distance between adjacent conductors and the center distance between adjacent conductors on the flexible flat cable roll manufactured in the step 3) meet the requirements through a camera, namely whether the center distance between the adjacent conductors is 0.3mm or not, and whether the edge distance value between the adjacent conductors is the value obtained by subtracting the width of the conductors from the center distance;
step 5), conducting test: step 4), detecting whether the qualified flexible flat cable material roll has short circuit and open circuit abnormity or not according to the size;
step 6), cutting: cutting the qualified flexible flat cable roll detected in the step 5) into single flexible flat cables by a cutting machine;
step 7), appearance inspection: detecting whether the appearance of the flexible flat cable is dirty or not and whether the length of the flexible flat cable is qualified or not at least;
step 8) packaging: and packaging a plurality of flexible flat cables and warehousing.
As one of the preferable embodiments of the present invention, the step 1) specifically includes:
drawing: thinning the cylindrical copper conductor, and enabling the sectional area of the thinned copper conductor to be the same as that of the flat conductor to be obtained;
rolling: flattening the drawn round copper wire to obtain a flat conductor with the width of 0.15-0.20 mm and the thickness of 0.025-0.050 mm.
As one preferable scheme of the present invention, in step 2), the plurality of conductors need to be uniformly arranged according to a set intermediate distance and stick to the hot-melt film through the guide grooves on the guide rod, wherein the guide grooves are uniformly distributed on the guide rod, the number of the guide grooves is consistent with that of the conductors, the size of the guide grooves is matched with that of the conductors, and the center distance between two adjacent guide grooves is also 0.3 mm.
In a preferred embodiment of the present invention, the guide rod is made of tungsten steel.
In a preferred embodiment of the present invention, in the step 2), before the bonding operation with the plurality of conductors, the hot-melt coating tape is cut with a window allowing the conductors to be exposed.
As one preferable scheme of the present invention, in the step 4), at least a camera with not less than 500 ten thousand pixels is used for testing.
Compared with the prior art, the invention has at least the following advantages:
1) according to the invention, the hot-melt leather film attaching technology is adopted to produce the flexible flat cable with the center distance of 0.3mm, the application of chemical substances is not involved in the whole production process, and the environment and the personnel health are not harmed; in the prior art, if the flexible flat cables with the 0.3-mm center distance are produced by adopting a chemical etching method, the flexible flat cables with the 0.3-mm center distance are not produced by adopting a hot-melt film attaching technology in the current market; at present, no flexible flat cable with the center distance lower than 0.3mm exists in the market, and the technical scheme provided by the invention fills the market blank and carries out technical innovation.
2) The width of the conductor of the FFC is 0.15-0.20 mm, while the width of the conductor of the FPC in the prior art is only 0.1mm, so the current resistance of the FFC is far greater than that of the FPC in the prior art.
3) Preferably, the method adopts a bare copper conductor and then carries out gold plating treatment, thereby avoiding the hidden trouble of short circuit of tin whisker caused by adopting a tinned conductor.
4) Preferably, the guide rod made of tungsten steel is adopted in the invention to solve the processing problem, the guide rod made of plastic is generally adopted in the prior art, but the guide rod with the center distance of two adjacent guide grooves of 0.3mm cannot be processed by the plastic, or the strength is not enough even if the guide rod is processed, and the guide rod is easy to break in the using process.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1 is a schematic view of a product structure of a flexible flat cable disclosed in the prior art;
FIG. 2 is a top view of a 0.3mm center-to-center flexible flat cable according to an embodiment of the present invention;
FIG. 3 is a side view of a 0.3mm center-to-center flexible flat cable according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a guide rod according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.
Referring to fig. 2-4, the embodiment of the invention discloses a flexible flat cable with a 0.3mm center distance, which comprises a flexible flat cable body 2 and a reinforcing plate 3, wherein a plurality of conductors 1 are uniformly arranged in the flexible flat cable body 2, the center distance between two adjacent conductors 1 is 0.3mm, the width of each conductor 1 is 0.15-0.20 mm, and the thickness of each conductor 1 is 0.025-0.050 mm. The conductor 1 is a gold-plated copper conductor 1 and is a flat conductor 1. Preferably, the width of the conductor 1 is 0.15mm, and the thickness of the conductor 1 is 0.025 mm; preferably, the width of the conductor 1 is 0.19mm, and the thickness of the conductor 1 is 0.035 mm; preferably, the width of the conductor 1 is 0.20mm, and the thickness of the conductor 1 is 0.04 mm; preferably, the width of the conductor 1 is 0.25mm and the thickness of the conductor 1 is 0.050 mm.
The embodiment of the invention also discloses a manufacturing method of the flexible flat cable with the center distance of 0.3mm, which comprises the following steps: the method comprises the following steps:
step 1) material preparation: providing a conductor 1 with the width of 0.15-0.20 mm and the thickness of 0.025-0.050 mm, wherein the conductor 1 is a flat conductor 1; specifically, the step 1) comprises the following steps:
drawing: thinning the cylindrical copper conductor 1, and enabling the sectional area of the thinned copper conductor 1 to be the same as that of the flat conductor 1 to be obtained;
rolling: flattening the drawn copper conductor 1 (round copper wire) to obtain a flat conductor 1 with the width of 0.15-0.20 mm and the thickness of 0.025-0.050 mm;
step 2) attaching: uniformly arranging a plurality of conductors 1 in the step 1) according to a set intermediate distance, and then sequentially attaching the plurality of conductors 1 with a hot-melt film and a reinforcing plate 3 together to form an intermediate material coil, wherein the center distance between two adjacent conductors 1 is 0.3 mm;
specifically, in the step 2), a plurality of conductors 1 need to be uniformly arranged according to a set middle distance and are attached to a hot-melt film released on a material roller through guide grooves on a guide rod 4, wherein the guide grooves with the same number as the conductors 1 are uniformly distributed on the guide rod 4, the size of each guide groove is matched with that of each conductor 1, and the center distance between every two adjacent guide grooves is 0.3 mm;
preferably, the guide rod 4 is made of tungsten steel, the guide rod 4 made of tungsten steel solves the processing problem, the guide rod 4 made of plastic is generally adopted in the prior art, but the guide rod 4 with the center distance of two adjacent guide grooves being 0.3mm cannot be processed by the plastic, or the guide rod 4 is not strong enough even if being processed, and is easy to break in the using process.
In the step 2), before the hot-melting leather film material belt is attached to the plurality of conductors 1, a window allowing the conductors 1 to be exposed is cut on the hot-melting leather film material belt;
step 3), electroplating: coiling the intermediate material prepared in the step 2) onto electroplating equipment for electroplating treatment, wherein only the exposed part of the conductor 1 is electroplated during electroplating, and the part of the conductor 1 covered by the hot-melt film is not electroplated, so that a flexible flat cable coil is prepared;
step 4), size detection: confirming whether the edge distance between adjacent conductors and the center distance between adjacent conductors on the flexible flat cable roll manufactured in the step 3) meet the requirements through a camera, namely whether the center distance between the adjacent conductors is 0.3mm or not, and whether the edge distance value between the adjacent conductors is the value obtained by subtracting the width of the conductors from the center distance;
step 5), conducting test: step 4), detecting whether the qualified flexible flat cable material roll has short circuit and open circuit abnormity or not according to the size;
step 6), cutting: cutting the qualified flexible flat cable roll detected in the step 5) into single flexible flat cables by a cutting machine;
step 7), appearance inspection: detecting whether the appearance of the flexible flat cable is dirty or not and whether the length of the flexible flat cable is qualified or not at least;
step 8) packaging: and packaging a plurality of flexible flat cables and warehousing.
According to the technical scheme, the flexible flat cable with the 0.3mm center distance is produced by adopting the hot-melt film attaching technology, the application of chemical substances is not involved in the whole production process, the environment and the personnel health are not harmed, and if the flexible flat cable with the 0.3mm center distance is produced by adopting a chemical etching method in the prior art, the flexible flat cable with the 0.3mm center distance cannot be produced by adopting the hot-melt film attaching technology in the current market, and the flexible flat cable FFC with the center distance lower than 0.3mm does not exist in the current market;
the width of the conductor of the flexible flat cable is 0.15-0.20 mm, while the width of the conductor of the FPC in the prior art is only 0.1mm, so the current resistance of the flexible flat cable is far greater than that of the FPC in the prior art; in addition, the invention adopts the bare copper conductor 1 to carry out gold plating treatment, thus avoiding the hidden trouble of short circuit of tin whisker caused by adopting the tin-plated conductor 1.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a flexible flat cable of 0.3mm centre-to-centre spacing which characterized in that: the flexible flat cable comprises a flexible flat cable body and a reinforcing plate, wherein a plurality of conductors are uniformly distributed in the flexible flat cable body, the center distance between two adjacent conductors is 0.3mm, the width of each conductor is 0.15-0.20 mm, the thickness of each conductor is 0.025-0.050 mm, the flexible flat cable body adopts a hot-melt film, and the plurality of conductors are required to be uniformly distributed according to a set middle distance and then are attached to the hot-melt film released on a material roller;
the plurality of conductors need to be evenly arranged according to a set middle distance and are attached to the hot-melting leather film through the guide grooves in the guide rod, wherein the guide grooves with the same number as the conductors are evenly distributed in the guide rod, the size of each guide groove is matched with the size of each conductor, the center distance between every two adjacent guide grooves is 0.3mm, and the guide rod has enough strength.
2. A 0.3mm center-to-center flexible flat cable according to claim 1, wherein: the conductor is a gold-plated copper conductor.
3. A 0.3mm center-to-center flexible flat cable according to claim 1, wherein: the conductor is a flat conductor.
4. A manufacturing method of a flexible flat cable with 0.3mm center distance is characterized in that: the method comprises the following steps:
step 1) material preparation: providing a conductor with the width of 0.15-0.20 mm and the thickness of 0.025-0.050 mm, wherein the conductor is a flat conductor;
step 2) attaching: uniformly arranging a plurality of conductors in the step 1) according to a set intermediate distance, and then sequentially attaching the plurality of conductors with a hot-melt film and a reinforcing plate together to form an intermediate material coil, wherein the center distance between two adjacent conductors is 0.3 mm;
step 3), electroplating: coiling the intermediate material prepared in the step 2) onto electroplating equipment for electrogilding treatment, wherein only the exposed part of the conductor is electroplated during electroplating, and the part of the conductor covered by the hot-melt film is not electroplated, so that a flexible flat cable coil is prepared;
step 4), size detection: confirming whether the edge distance between adjacent conductors and the center distance between adjacent conductors on the flexible flat cable roll manufactured in the step 3) meet the requirements through a camera, namely whether the center distance between the adjacent conductors is 0.3mm or not, and whether the edge distance value between the adjacent conductors is the value obtained by subtracting the width of the conductors from the center distance;
step 5), conducting test: step 4), detecting whether the qualified flexible flat cable material roll has short circuit and open circuit abnormity or not according to the size;
step 6), cutting: cutting the qualified flexible flat cable roll detected in the step 5) into single flexible flat cables by a cutting machine;
step 7), appearance inspection: detecting whether the appearance of the flexible flat cable is dirty or not and whether the length of the flexible flat cable is qualified or not at least;
step 8) packaging: packaging a plurality of flexible flat cables and warehousing;
in step 2), a plurality of conductors need to be uniformly arranged according to a set middle distance and are attached to the hot-melt film through the guide grooves in the guide rod, wherein the guide grooves with the same number as the conductors are uniformly distributed on the guide rod, the size of each guide groove is matched with that of each conductor, the center distance between every two adjacent guide grooves is 0.3mm, and the guide rod has enough strength.
5. The manufacturing method of flexible flat cable with 0.3mm center-to-center distance as claimed in claim 4, wherein: the step 1) specifically comprises the following steps:
drawing: thinning the cylindrical copper conductor, and enabling the sectional area of the thinned copper conductor to be the same as that of the flat conductor to be obtained;
rolling: flattening the drawn round copper wire to obtain a flat conductor with the width of 0.15-0.20 mm and the thickness of 0.025-0.050 mm.
6. The manufacturing method of flexible flat cable with 0.3mm center-to-center distance as claimed in claim 4, wherein: the guide rod is made of tungsten steel.
7. The manufacturing method of flexible flat cable with 0.3mm center-to-center distance as claimed in claim 4, wherein: in the step 2), before the hot-melting coating material strip is attached to a plurality of conductors, a window allowing the conductors to be exposed is cut on the hot-melting coating material strip.
8. The manufacturing method of flexible flat cable with 0.3mm center-to-center distance as claimed in claim 4, wherein: and in the step 4), at least a camera with not less than 500 ten thousand pixels is adopted for testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279963.2A CN110070960B (en) | 2019-04-15 | 2019-04-15 | Flexible flat cable with 0.3mm center distance and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910279963.2A CN110070960B (en) | 2019-04-15 | 2019-04-15 | Flexible flat cable with 0.3mm center distance and manufacturing method thereof |
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| CN110070960A CN110070960A (en) | 2019-07-30 |
| CN110070960B true CN110070960B (en) | 2021-01-26 |
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| CN201910279963.2A Active CN110070960B (en) | 2019-04-15 | 2019-04-15 | Flexible flat cable with 0.3mm center distance and manufacturing method thereof |
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| CN111009357B (en) * | 2020-01-16 | 2021-04-27 | 广东田津电子技术有限公司 | Manufacturing process of oxidation-resistant tin whisker-resistant FFC wire |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003022713A (en) * | 2001-07-06 | 2003-01-24 | Matsushita Electric Ind Co Ltd | Tabular wiring cable and electronic equipment |
| CN102194552A (en) * | 2010-12-29 | 2011-09-21 | 今皓光电（昆山）有限公司 | Flexible flat cable manufacturing process |
| CN204375449U (en) * | 2015-02-05 | 2015-06-03 | 苏州新亚电通有限公司 | A kind of flexible flat cable |
| CN106340343A (en) * | 2016-09-02 | 2017-01-18 | 苏州新亚电通有限公司 | Flexible flat cable device |
| CN108922661A (en) * | 2018-08-29 | 2018-11-30 | 东莞市田津电子科技有限公司 | The manufacture craft and its structure of multi-terminal link FFC |
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2019
- 2019-04-15 CN CN201910279963.2A patent/CN110070960B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003022713A (en) * | 2001-07-06 | 2003-01-24 | Matsushita Electric Ind Co Ltd | Tabular wiring cable and electronic equipment |
| CN102194552A (en) * | 2010-12-29 | 2011-09-21 | 今皓光电（昆山）有限公司 | Flexible flat cable manufacturing process |
| CN204375449U (en) * | 2015-02-05 | 2015-06-03 | 苏州新亚电通有限公司 | A kind of flexible flat cable |
| CN106340343A (en) * | 2016-09-02 | 2017-01-18 | 苏州新亚电通有限公司 | Flexible flat cable device |
| CN108922661A (en) * | 2018-08-29 | 2018-11-30 | 东莞市田津电子科技有限公司 | The manufacture craft and its structure of multi-terminal link FFC |
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Address after: 215000 No.98 Ruyuan Road, Chengyang street, Xiangcheng economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou Xinya Diantong Co.,Ltd. Address before: 215000 No.98 Ruyuan Road, Chengyang street, Xiangcheng economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU XINYA ELECTRONICS Co.,Ltd. |