CN105513687A - Anti-interference four-layer flat shielding cable - Google Patents
Anti-interference four-layer flat shielding cable Download PDFInfo
- Publication number
- CN105513687A CN105513687A CN201610058492.9A CN201610058492A CN105513687A CN 105513687 A CN105513687 A CN 105513687A CN 201610058492 A CN201610058492 A CN 201610058492A CN 105513687 A CN105513687 A CN 105513687A
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- Prior art keywords
- layer
- interference
- conductor
- conductive layer
- cable
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Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
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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
- H01B7/083—Parallel wires, incorporated in a fabric
-
- 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
- H01B7/0861—Flat or ribbon cables comprising one or more screens
-
- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- 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
- H01B7/0009—Details relating to the conductive cores
- H01B7/0018—Strip or foil conductors
Abstract
The invention discloses an anti-interference four-layer flat shielding cable which comprises a base material, adhesive for connecting two separation materials, a conductor for transmitting signals, a shielding layer for shielding radiated interference and an outer insulating layer arranged on the outermost layer in a wrapping mode. The shielding layer is located between the conductor and the outer insulating layer. The conductor comprises a first conducting layer, a second conducting layer, a third conducting layer and a fourth conducting layer, wherein cross sections of the first conducting layer, the second conducting layer, the third conducting layer and the fourth conducting layer are in a sheet shape. According to the anti-interference four-layer flat shielding cable, through equivalent capacitance formed among the four layers of the conductor, the anti-interference technical effect is achieved, through FPC imitation structural design, cable flattening is achieved in real sense, meanwhile the insulating layer isolates an electric wire so that people can be prevented from being injured by electric shock, the shielding layer shields radiated interference, and tension resistance is achieved through a reinforcing component, so that the cable can be smaller in size, smaller in thickness and higher in anti-interference capacity and shielding capacity compared with an existing cable.
Description
Technical field
The present invention relates to electric wire field, particularly relate to a kind of anti-interference four layers of flat screened 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, the stronger and flat cable that thickness is thinner of a kind of antijamming capability is necessary to design.
Summary of the invention
The present invention provides a kind of anti-interference four layers of flat screened 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, achieve cable flattening truly, prevent people from getting an electric shock by external insulation layer isolation electric wire injured simultaneously, disturbed by screen radiation-screening, tension is realized by strengthening part, make this cable compared to flat cable in the past, volume is less, and thickness is thinner, antijamming capability and screening ability 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 screened cable, the anti-interference four layers of flat screened cable of described one comprise: base material, connect two kinds of parting materials adhesive, be used for transmission of electric signals conductor, radiation-screening interference screen and be wrapped in outermost external insulation layer, described screen is between conductor and external insulation layer, 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 screen.
Further, the both sides of the second described conductive layer, the 3rd conductive layer are filled with adhesive, do not contact with screen.
Further, inner insulating layer is provided with between described external insulation layer and screen, described inner insulating layer is plastics packaging material or reinforced insulation layer, base material, adhesive, conductor are wrapped in inner side by described plastics packaging material, described reinforced insulation layer is by the outside of adhesive coverage at the first conductive layer, the 4th conductive layer, the width of described reinforced insulation layer is greater than the width of conductor, and what it exceeded conductor has been partially filled adhesive.
Further, the strengthening part that strengthening core is entwined is provided with in described external insulation layer.
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.
Further, described screen is Copper Foil or aluminium foil or proof copper-wire braided layer or Copper Foil superposition proof copper-wire braided layer or aluminium foil superposition proof copper-wire braided layer.
The invention has the beneficial effects as follows:
A kind of anti-interference four layers of flat screened 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; Prevent people from getting an electric shock by external insulation layer isolation electric wire injured simultaneously, disturbed by screen radiation-screening, 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, and thickness is thinner, antijamming capability and screening ability are stronger, be suitable for high to space requirement, high to equipment precision requirement, antijamming capability and the high user of screening ability requirement are used.
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, external insulation layer 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, inner insulating layer 5, strengthening part 6, screen 7, 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 screened cable, the anti-interference four layers of flat screened cable of described one comprise: base material 3, connect the adhesive 4 of two kinds of parting materials, be used for the conductor 2 of transmission of electric signals, radiation-screening interference screen 7 and be wrapped in outermost external insulation layer 1, described screen 7 is between conductor 2 and external insulation layer 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, the first described conductive layer 21, second conductive layer 22, 3rd conductive layer 23, 4th conductive layer 24 is 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 screen 7.
Further, the second described conductive layer 22, the both sides of the 3rd conductive layer 23 are filled with adhesive 4, do not contact with screen 7.
Further, inner insulating layer 5 is provided with between described external insulation layer 1 and screen 7, described inner insulating layer 5 is plastics packaging material or reinforced insulation layer, base material 3, adhesive 4, conductor 2 are wrapped in inner side by described plastics packaging material, described reinforced insulation layer covers the outside of the first conductive layer 21, the 4th conductive layer 24 by adhesive 4, the width of described reinforced insulation layer is greater than the width of conductor 2, and what it exceeded conductor 2 has been partially filled adhesive 4.
Further, the strengthening part 6 that strengthening core is entwined is provided with in described external insulation layer 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.
Further, described screen 7 is Copper Foil or aluminium foil or proof copper-wire braided layer or Copper Foil superposition proof copper-wire braided layer or aluminium foil superposition proof copper-wire braided layer.
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: external insulation layer 1, screen 7, 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, screen 7 and external insulation layer 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 external insulation layer 1 adopts PVC plastic, this base material 3 adopts PI plastic material, conductor 2 adopts Copper Foil, screen 7 adopts aluminium foil, this cable uses as power line, and the first conductive layer 21 and the 4th conductive layer 24 earth connection.
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 external insulation layer 1 and screen 7, 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, inner insulating layer 5 is provided with between external insulation layer 1 and screen 7, inner insulating layer 5 adopts PVC plastic, conductor 2, adhesive 4, base material 3 are wrapped in inner side, when do not comprise external insulation layer 1, screen 7 and inner insulating layer 5, its gross thickness is consistent with the first embodiment, is still 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, the strengthening part 6 that many strengthening cores are entwined is provided with in external insulation layer 1, this strengthening part 6 has eight, up and down each four evenly distributed, strengthening part 6 is for being filled in external insulation layer 1, therefore do 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 external insulation layer 1, this strengthening part 6 has eight, up and down each four evenly distributed, strengthening part 6 for being filled in external insulation layer 1, therefore does not increase integral thickness, with the consistency of thickness of the second embodiment, namely with the consistency of thickness of the first 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 (7)
1. anti-interference four layers of flat screened cable, it is characterized in that: the anti-interference four layers of flat screened cable of described one comprise: base material (3), connect the adhesive (4) of two kinds of parting materials, be used for the conductor (2) of transmission of electric signals, radiation-screening interference screen (7) and be wrapped in outermost external insulation layer (1), described screen (7) is positioned between conductor (2) and external insulation layer (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 screened 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 screen (7).
3. the anti-interference four layers of flat screened cable of one according to claim 1, is characterized in that: the both sides of described the second conductive layer (22), the 3rd conductive layer (23) are filled with adhesive (4), do not contact with screen (7).
4. the anti-interference four layers of flat screened cable of one according to claim 1, it is characterized in that: between described external insulation layer (1) and screen (7), be provided with inner insulating layer (5), described inner insulating layer (5) is plastics packaging material or reinforced insulation layer, described plastics packaging material is by base material (3), adhesive (4), conductor (2) is wrapped in inner side, described reinforced insulation layer covers the first conductive layer (21) by adhesive (4), the outside of the 4th conductive layer (24), the width of described reinforced insulation layer is greater than the width of conductor (2), what it exceeded conductor (2) has been partially filled adhesive (4).
5. the anti-interference four layers of flat screened 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 external insulation layer (1).
6. the anti-interference four layers of flat screened 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.
7. the anti-interference four layers of flat screened cable of one according to claim 1, is characterized in that: described screen (7) is for Copper Foil or aluminium foil or proof copper-wire braided layer or Copper Foil superposes proof copper-wire braided layer or aluminium foil superposes proof copper-wire braided layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610058492.9A CN105513687A (en) | 2016-01-28 | 2016-01-28 | Anti-interference four-layer flat shielding cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610058492.9A CN105513687A (en) | 2016-01-28 | 2016-01-28 | Anti-interference four-layer flat shielding cable |
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| CN105513687A true CN105513687A (en) | 2016-04-20 |
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ID=55721598
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|---|---|---|---|
| CN201610058492.9A Pending CN105513687A (en) | 2016-01-28 | 2016-01-28 | Anti-interference four-layer flat shielding cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113396459A (en) * | 2018-12-14 | 2021-09-14 | 安能科技控股有限公司 | Capacitive cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6225563B1 (en) * | 1999-04-12 | 2001-05-01 | Peder U. Poulsen | Audio signal interconnect cable |
| 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 |
| CN204066795U (en) * | 2014-09-27 | 2014-12-31 | 沈健龙 | A kind of jamming-proof flat cable |
-
2016
- 2016-01-28 CN CN201610058492.9A patent/CN105513687A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6225563B1 (en) * | 1999-04-12 | 2001-05-01 | Peder U. Poulsen | Audio signal interconnect cable |
| 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 |
| CN204066795U (en) * | 2014-09-27 | 2014-12-31 | 沈健龙 | A kind of jamming-proof flat cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113396459A (en) * | 2018-12-14 | 2021-09-14 | 安能科技控股有限公司 | Capacitive cable |
| CN113396459B (en) * | 2018-12-14 | 2024-01-05 | 安能科技有限公司 | Capacitive cable |
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