CN105448394A - Anti-interference four-layer flat cable - Google Patents
Anti-interference four-layer flat cable Download PDFInfo
- Publication number
- CN105448394A CN105448394A CN201610058573.9A CN201610058573A CN105448394A CN 105448394 A CN105448394 A CN 105448394A CN 201610058573 A CN201610058573 A CN 201610058573A CN 105448394 A CN105448394 A CN 105448394A
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- CN
- China
- Prior art keywords
- conductive layer
- interference
- flat cable
- adhesive
- conductor
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Classifications
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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
- H01B7/0823—Parallel wires, incorporated in a flat insulating profile
Abstract
The invention discloses an anti-interference four-layer flat cable. The flat cable comprises a base material, adhesives on the upper side and the lower side of the base material, a conductor connected with the adhesives and used for transmitting electric signals and an insulation layer wrapping the outermost layer. The conductor comprises a first conducting layer, a second conducting layer, a third conducting layer and a fourth conducting layer with the cross sections being in a sheet shape. The first conducting layer, the second conducting layer, the third conducting layer and the fourth conducting layer are parallel. According to the anti-interference four-layer flat cable, by equivalent capacitance formed between the four layers of conductors, the anti-interference technical effect is achieved; real cable flattening is achieved by means of FPC imitation structural design; meanwhile, the cable is protected by the insulation layer, and tensile resistance is achieved through a reinforcing part, so that compared with prior flat cables, the flat cable has the advantages that the size is smaller, thickness is smaller, and anti-interference capacity is higher.
Description
Technical field
The present invention relates to electric wire field, particularly relate to a kind of anti-interference four layers of flat cable.
Background technology
Cable is formed by several or several groups of wire strandings, and often organize mutually insulated between wire, and be often twisted into round a center, whole outside is surrounded by the cover layer of high-insulation, makes cable have the feature of interior energising, external insulation.
In the middle of routine use, we often can use three and plug in power line, its three plugs connect live wire L, zero line N and ground wire PE respectively, zero line thinks the center line of three-phase electricity, interference between zero line and live wire is called " differential mode interference ", " differential mode interference " also refers to the interference voltage acted between signal anode and negative terminal, and this interference is carried on useful signal, directly affects the precision of Measurement & Control; Interference between live wire and ground wire is called " common mode disturbances ", this is owing to there is potential difference between cable and the earth, make cable has common mode current, if equipment produces common mode current on its cable, cable can produce strong electromagnetic radiation, electromagnetic interference is produced to electronics, electric product components and parts, affects the performance index of product; In order to avoid the impact of " differential mode interference " and " common mode disturbances ", people need to increase some designs and suppress " differential mode interference " and " common mode disturbances ", such as shunt capacitance or application differential mode inductance or add electromagnetic interface filter at the electric power incoming line place of equipment on circuit, but this type of design is difficult to when small product size is restricted realize.
Simultaneously, such as generate electricity, metallurgical, chemical industry, under the adverse circumstances such as harbour, between mobile appliance equipment, electrical equipment connects the flat cable often adopted, it is relative to the cable of circular configuration, be easy to install, potential safety hazard is less, but the structure of many wires in flat cable or the parallel placement of cable, cable information easily occurred each other in the process used is disturbed, be directed to this kind of situation, patent announcement number is the jamming-proof flat cable of one of CN204066795U, by being provided with hollow channel between the cable inner core of flat cable inside, the signal disturbing between the cable inner core in signals transmission is reduced by the air in hollow channel, thus make Signal transmissions more accurately clear, but the jamproof effect of this invention is very limited, can only resisting radiation interference, conducted interference cannot be prevented, and add hollow channel, namely add the width of cable, this flat cable is not suitable in narrow space.
Therefore, be necessary to design the anti-conducted interference of a kind of energy and the thinner flat cable of thickness.
Summary of the invention
The present invention provides a kind of anti-interference four layers of flat cable for solving the problem; by the equivalent capacity formed between four layers of conductor, achieve the technique effect of anti-conducted interference, the structural design of imitative FPC; the thickness of cable is made to enter micron dimension; achieve cable flattening truly, simultaneously by dielectric protection layer cable, realize tension by strengthening part; make this cable compared to flat cable in the past; volume is less, and thickness is thinner, and antijamming capability is stronger.
For achieving the above object, reach above-mentioned effect, the present invention is achieved through the following technical solutions:
A kind of anti-interference four layers of flat cable, the anti-interference four layers of flat cable of described one comprise: base material, be positioned at the upper and lower both sides of base material adhesive, to be connected with adhesive and be used for transmission of electric signals conductor and be wrapped in outermost insulating barrier, it is laminar first conductive layer, the second conductive layer, the 3rd conductive layer and the 4th conductive layer that described conductor comprises cross section, and the first described conductive layer, the second conductive layer, the 3rd conductive layer, the 4th conductive layer are parallel to each other.
Further, the width of described conductor is less than the width of base material and adhesive, and the part described adhesive exceeding conductor is filled by insulating barrier.
Further, the both sides up and down of described conductor are all connected with adhesive, and the first described conductive layer, the second conductive layer, the 3rd conductive layer and the 4th conductive layer are wrapped in inner side by the adhesive of upper and lower both sides respectively.
Further, the outside of the first described conductive layer, the 4th conductive layer is connected with reinforced insulation layer by adhesive, the both sides of the second described conductive layer, the 3rd conductive layer are connected with base material by adhesive, described reinforced insulation layer is between insulating barrier and conductor, and width is greater than the width of conductor.
Further, the strengthening part that strengthening core is entwined is provided with in described insulating barrier.
Further, described conductor is the Copper Foil of less than 175 μm or silver foil or silver-plated Copper Foil or zinc-plated Copper Foil.
The invention has the beneficial effects as follows:
A kind of anti-interference four layers of flat cable, the stacked structure copying FPC replaces traditional circular configuration, the thickness of cable is made to enter micron dimension, achieve cable flattening truly, simultaneously when cross-sectional area is the same, flake conductor is larger than the surface area of cylindrical conductor, and its heat-sinking capability significantly improves, and makes this cable safer; Four layers of conductor parallel construction is each other equivalent to multiple electric capacity, if be applied in power line, the X electric capacity of formation can suppress differential mode interference, and the Y capacitance of formation can suppress common mode disturbances, achieves the technique effect of anti-conducted interference; Simultaneously by dielectric protection layer cable; tension is realized by strengthening part and base material; withstand voltage standard is reached by base material; make this cable compared to flat cable in the past; volume is less; thickness is thinner, and antijamming capability is stronger, is suitable for high to space requirement, high to equipment precision requirement, high to antijamming capability requirement user and uses.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of specification, coordinate accompanying drawing to describe in detail with preferred embodiment of the present invention below, the specific embodiment of the present invention provides in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the cross sectional representation of first embodiment of the invention;
Fig. 2 is the equivalent circuit diagram of first embodiment of the invention;
Fig. 3 is the sample table of the selection of material parameter and electrical quantity in first embodiment of the invention;
Fig. 4 is the sample table of the selection of material parameter and thickness in first embodiment of the invention;
Fig. 5 is the cross sectional representation of second embodiment of the invention;
Fig. 6 is the cross sectional representation of third embodiment of the invention;
Fig. 7 is the cross sectional representation of fourth embodiment of the invention.
Wherein, insulating barrier 1, conductor 2, first conductive layer 21, second conductive layer 22, the 3rd conductive layer 23, the 4th conductive layer 24, base material 3, adhesive 4, reinforced insulation layer 5, strengthening part 6, C
1-C
3for equivalent capacity.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail:
As shown in Fig. 1-Fig. 7, a kind of anti-interference four layers of flat cable, the anti-interference four layers of flat cable of described one comprise: base material 3, be positioned at base material about 3 both sides adhesive 4, to be connected with adhesive 4 and be used for transmission of electric signals conductor 2 and be wrapped in outermost insulating barrier 1, it is laminar first conductive layer 21, second conductive layer 22, the 3rd conductive layer 23 and the 4th conductive layer 24 that described conductor 2 comprises cross section, and the first described conductive layer 21, second conductive layer 22, the 3rd conductive layer 23, the 4th conductive layer 24 are parallel to each other.
Further, the width of described conductor 2 is less than the width of base material 3 and adhesive 4, and the part described adhesive 4 exceeding conductor 2 is filled by insulating barrier 1.
Further, the both sides up and down of described conductor 2 are all connected with adhesive 4, and described the first conductive layer 21, second conductive layer 22, the 3rd conductive layer 23 and the 4th conductive layer 24 are wrapped in inner side by the adhesive 4 of upper and lower both sides respectively.
Further, the first described conductive layer 21, the outside of the 4th conductive layer 24 are connected with reinforced insulation layer 5 by adhesive 4, the second described conductive layer 22, the both sides of the 3rd conductive layer 23 are connected with base material 3 by adhesive 4, described reinforced insulation layer 5 is between insulating barrier 1 and conductor 2, and width is greater than the width of conductor 2.
Further, the strengthening part 6 that strengthening core is entwined is provided with in described insulating barrier 1.
Further, described conductor 2 is the Copper Foil of less than 175 μm or silver foil or silver-plated Copper Foil or zinc-plated Copper Foil.
Specific embodiment
The cross section of first embodiment of the invention as shown in Figure 1, because this flat cable is too elongated, therefore adopt tilde to omit the mid portion of same structure, the figure on tilde both sides is respectively the two ends of this flat cable, wherein, structure is from top to bottom: insulating barrier 1, first conductive layer 21, adhesive 4, base material 3, adhesive 4, second conductive layer 22, adhesive 4, base material 3, adhesive 4, 3rd conductive layer 23, adhesive 4, base material 3, adhesive 4, 4th conductive layer 24 and insulating barrier 1, first conductive layer 21, second conductive layer 22, 3rd conductive layer 23, 4th conductive layer 24 is parallel to each other, and width is all less than the width of base material 3 and adhesive 4, simultaneously, this insulating barrier 1 adopts PVC plastic, this base material 3 adopts PI plastic material, conductor 2 adopts Copper Foil, this cable uses as power line.
When using as power line, the first conductive layer 21 and the 4th conductive layer 24 earth connection PE, the second conductive layer 22 and the 3rd conductive layer 23 are started to exchange fire line L and zero line N respectively, its equivalent circuit diagram as shown in Figure 2, wherein equivalent capacity C
1, equivalent capacity C
3for Y capacitance, equivalent capacity C
2for X electric capacity, four layers of conductor 2 are parallel to each other, so electric capacity C
1-C
3be plane-parallel capacitor, therefore capacitance is C=ε S/D=ε
oε
rs/D, wherein ε is the dielectric constant of medium between pole plate, ε
ofor vacuum absolute dielectric constant, ε
rfor relative dielectric constant, S is polar plate area, and D is the distance between pole plate, and in this embodiment, ε is the dielectric constant of medium between adjacent conductor 2, and S is the area of conductor 2, and D is the distance between adjacent conductor 2.
As shown in Figure 3, wherein vacuum absolute dielectric constant ε
o=8.854187817 × 10
-12f/m, base material 3 gets ε with the relative dielectric constant of adhesive 4
r=3, the parameter of adhesive 4 be two layers of adhesive 4 and value, wherein equivalent capacity C
1-C
3capacitance consistent, due to equivalent capacity C
1, equivalent capacity C
3be Y capacitance, therefore the anti-common mode disturbances energy force rate robust mould interference performance of this flat cable is eager to excel; Base material 3 adopts PI plastic material, and its withstand voltage radix is 275KV/mm, because withstand voltage is main relevant to base material 3, therefore meets different cable voltage standards by the thickness changing base material 3.
As shown in Figure 4, the copper thickness specification that current conductor 2 uses has 17.5 μm, 35 μm, 70 μm three kinds, base material 3 has 12.5 μm, 25 μm, 50 μm, 75 μm, 125 μm five kinds, 4, adhesive is between 12.5 μm ~ 100 μm, so when adopting the first embodiment, when not comprising insulating barrier 1, its gross thickness comprises four layers of Copper Foil, three layers of base material 3 and six layers of adhesive 4, numerical value is between 182.5 μm ~ 1255 μm, wherein, sequence number conventional in the market 1., 2. the thickness of two kinds of structures is 182.5 μm respectively, 335 μm, its thickness is less than the cable inner core thickness of current circular configuration.
The first embodiment that composition graphs 1-Fig. 4 obtains, this flat cable has the character of thickness much smaller than width, and round cable thickness and width are diameter R, when the sectional area of two kinds of cables is consistent, its impedance is consistent, when by same current, the heat that its cable produces is consistent, now, the width of flat cable is greater than the width of round cable, therefore the area of dissipation of flat cable is greater than the area of dissipation of round cable, so when cross-sectional area is the same, flat cable is relative to round cable, its heat-sinking capability is stronger, by electric current higher, thus make the use of cable safer.
The cross section of second embodiment of the invention as shown in Figure 5, on the basis of the first embodiment, conductor 2 is connected with reinforced insulation layer 5 by adhesive 4, namely adhesive 4 and reinforced insulation layer 5 is all connected with in the outside of the first conductive layer 21 and the 4th conductive layer 24, the vacancy of conductor 2 both sides is also filled with adhesive 4, first conductive layer 21 and the 4th conductive layer 24 are wrapped in inner side by the adhesive 4 of upper and lower both sides respectively, the thickness specification of reinforced insulation layer 5 common are 12.5 μm, 25 μm, 50 μm three kinds, the basis of the first embodiment adds two layers of adhesive 4 and reinforced insulation layer 5, its thickness specification is between 232.5 μm ~ 1555 μm, by sequence number in Fig. 4 1., 2. two kinds of structures increase by 12.5 μm respectively, the reinforced insulation layer 5 of 25 μm, its thickness is respectively 232.5 μm, 425 μm, still be less than the cable inner core thickness of current circular configuration.
The cross section of third embodiment of the invention as shown in Figure 6, on the basis of the first embodiment, the strengthening part 6 that many strengthening cores are entwined is provided with in insulating barrier 1, this strengthening part 6 has eight, up and down each four evenly distributed, strengthening part 6 for being filled in insulating barrier 1, therefore does not increase integral thickness, with the consistency of thickness of the first embodiment.
The cross section of fourth embodiment of the invention as shown in Figure 7, on the basis of the second embodiment, the strengthening part 6 that many strengthening cores are entwined is provided with in insulating barrier 1, this strengthening part 6 has eight, up and down each four evenly distributed, strengthening part 6 for being filled in insulating barrier 1, therefore does not increase integral thickness, with the consistency of thickness of the second embodiment.
The above, be only preferred embodiment of the present invention, not does any pro forma restriction to the present invention; The those of ordinary skill of all industry all can shown in by specification accompanying drawing and the above and implement the present invention swimmingly; But all those skilled in the art are not departing within the scope of technical solution of the present invention, utilize disclosed above technology contents and make a little change, modify with differentiation equivalent variations, be Equivalent embodiments of the present invention; Meanwhile, all according to substantial technological of the present invention to the change of any equivalent variations that above embodiment is done, modify and differentiation etc., within the protection range all still belonging to technical scheme of the present invention.
Claims (6)
1. anti-interference four layers of flat cable, it is characterized in that: the anti-interference four layers of flat cable of described one comprise: base material (3), be positioned at the adhesive (4) of the upper and lower both sides of base material (3), be connected with adhesive (4) and be used for transmission of electric signals conductor (2) and be wrapped in outermost insulating barrier (1), it is laminar first conductive layer (21) that described conductor (2) comprises cross section, second conductive layer (22), 3rd conductive layer (23) and the 4th conductive layer (24), described the first conductive layer (21), second conductive layer (22), 3rd conductive layer (23), 4th conductive layer (24) is parallel to each other.
2. the anti-interference four layers of flat cable of one according to claim 1, it is characterized in that: the width of described conductor (2) is less than the width of base material (3) and adhesive (4), and the part described adhesive (4) exceeding conductor (2) is filled by insulating barrier (1).
3. the anti-interference four layers of flat cable of one according to claim 1, it is characterized in that: the both sides up and down of described conductor (2) are all connected with adhesive (4), described the first conductive layer (21), the second conductive layer (22), the 3rd conductive layer (23) and the 4th conductive layer (24) are wrapped in inner side by the adhesive of upper and lower both sides (4) respectively.
4. the anti-interference four layers of flat cable of one according to claim 3, it is characterized in that: the outside of described the first conductive layer (21), the 4th conductive layer (24) is connected with reinforced insulation layer (5) by adhesive (4), the both sides of described the second conductive layer (22), the 3rd conductive layer (23) are connected with base material (3) by adhesive (4), described reinforced insulation layer (5) is positioned between insulating barrier (1) and conductor (2), and width is greater than the width of conductor (2).
5. the anti-interference four layers of flat cable of one according to claim 1, is characterized in that: be provided with the strengthening part (6) that strengthening core is entwined in described insulating barrier (1).
6. the anti-interference four layers of flat cable of one according to claim 1, is characterized in that: described conductor (2) is the Copper Foil of less than 175 μm or silver foil or silver-plated Copper Foil or zinc-plated Copper Foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610058573.9A CN105448394A (en) | 2016-01-28 | 2016-01-28 | Anti-interference four-layer flat cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610058573.9A CN105448394A (en) | 2016-01-28 | 2016-01-28 | Anti-interference four-layer flat cable |
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| Publication Number | Publication Date |
|---|---|
| CN105448394A true CN105448394A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610058573.9A Pending CN105448394A (en) | 2016-01-28 | 2016-01-28 | Anti-interference four-layer flat cable |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101681696A (en) * | 2007-06-13 | 2010-03-24 | 自动电缆管理有限责任公司 | Motor vehicle power cable |
| CN203038681U (en) * | 2012-11-02 | 2013-07-03 | 中国电子科技集团公司第二十三研究所 | Low-inductance flat cable |
| CN203300244U (en) * | 2013-06-11 | 2013-11-20 | 江苏金瀚电子科技发展有限公司 | Laminated conductor-based flat data line |
| CN204066795U (en) * | 2014-09-27 | 2014-12-31 | 沈健龙 | A kind of jamming-proof flat cable |
-
2016
- 2016-01-28 CN CN201610058573.9A patent/CN105448394A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101681696A (en) * | 2007-06-13 | 2010-03-24 | 自动电缆管理有限责任公司 | Motor vehicle power cable |
| CN203038681U (en) * | 2012-11-02 | 2013-07-03 | 中国电子科技集团公司第二十三研究所 | Low-inductance flat cable |
| CN203300244U (en) * | 2013-06-11 | 2013-11-20 | 江苏金瀚电子科技发展有限公司 | Laminated conductor-based flat data line |
| CN204066795U (en) * | 2014-09-27 | 2014-12-31 | 沈健龙 | A kind of jamming-proof flat cable |
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Application publication date: 20160330 |
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