CN105489290A - Anti-interference double-layer flat shielding cable - Google Patents
Anti-interference double-layer flat shielding cable Download PDFInfo
- Publication number
- CN105489290A CN105489290A CN201610058575.8A CN201610058575A CN105489290A CN 105489290 A CN105489290 A CN 105489290A CN 201610058575 A CN201610058575 A CN 201610058575A CN 105489290 A CN105489290 A CN 105489290A
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- layer
- conductor
- interference
- cable
- adhesive
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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
- H01B7/0861—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
- H01B7/08—Flat or ribbon cables
- H01B7/0823—Parallel wires, incorporated in a flat insulating profile
-
- 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
- H01B7/0869—Flat or ribbon cables comprising one or more armouring, tensile- or compression-resistant elements
-
- 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The invention discloses an anti-interference double-layer flat shielding cable, which includes a substrate, an adhesive connecting two separate materials, a conductor for transmitting electric signals, an inner insulating layer isolated from the conductor, a shielding layer shielding radiation interference, and an outer insulating layer wrapping the outermost layer of the cable. The conductor includes a first conductive layer and a second conductive layer, each of which has a sheet-shaped cross section. The shielding layer is positioned between the inner insulating layer and the outer insulating layer. Equivalent capacitance formed between the two layers of the conductor helps to achieve an anti-interference technical effect. The structural design simulating an FPC enables the cable to be truly flat. Meanwhile, the insulating layers are adopted to isolate a wire to prevent people from being hurt by electric shock. The shielding layer is adopted to shield radiation interference and a reinforcing part is utilized to realize tension, so the cable is smaller in size, becomes thinner, and exhibits better anti-interference and shielding capabilities compared with conventional flat cables.
Description
Technical field
The present invention relates to electric wire field, particularly relate to a kind of anti-interference double-layer flat shielded type 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.
Usually the electrical equipment that we use is two lines, a live wire L, a zero line N, zero line thinks the center line of three-phase electricity, interference between zero line and live wire is called " differential mode interference ", and " differential mode interference " also refers to the interference voltage acted between signal anode and negative terminal, and the inductive coupling and the common mode disturbances that mainly contain external electromagnetic field are changed rear " differential mode interference " that formed by unbalanced circuit, this interference is carried on useful signal, directly affects the precision of Measurement & Control; In order to avoid this " differential mode interference " is on the impact of precision, people need to increase some designs and suppress " differential mode interference ", 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 double-layer 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 double-layer flat shielded type cable for solving the problem, by the equivalent capacity formed between the first conductive layer and the second conductive layer, achieve jamproof technique effect; The structural design of imitative FPC, achieves cable flattening truly; Prevent people from getting an electric shock by insulator separation electric wire injured simultaneously, disturbed by screen radiation-screening, realize tension 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 double-layer flat shielded type cable, described one anti-interference double-layer flat shielded type cable comprises: base material, connect two kinds of parting materials adhesive, be used for the conductor of transmission of electric signals, the inner insulating layer of insulated conductor, the screen of radiation-screening interference and be wrapped in outermost external insulation layer, it is laminar first conductive layer and the second conductive layer that described conductor comprises cross section, the first described conductive layer and the second conductive layer parallel to each other and lay respectively at the both sides up and down of base material, described screen is between inner insulating layer and external insulation layer.
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 inner insulating layer.
Further, 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 by adhesive coverage outside conductor, 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 double-layer flat shielded type 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 in actual use; Parallel construction between first conductive layer and the second conductive layer of base material both sides is equivalent to an electric capacity, if be applied in power line, the X electric capacity of formation can suppress differential mode interference, achieves the technique effect of anti-differential mode interference; Prevent people from getting an electric shock by external insulation layer isolation electric wire injured simultaneously, the interference between screen and conductor is prevented by inner insulating layer, disturbed by screen radiation-screening, realize tension by strengthening part and base material, reach withstand voltage standard by base material, make this cable compared to flat cable in the past, volume is less, thickness is thinner, and antijamming capability and screening ability are stronger, is suitable for high to space requirement, high to equipment precision 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 schematic equivalent circuit 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, base material 3, adhesive 4, inner insulating layer 5, strengthening part 6, screen 7, C are equivalent capacitys.
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 double-layer flat shielded type cable, the anti-interference double-layer flat shielded type cable of described one comprises: base material 3, connect the adhesive 4 of two kinds of parting materials, be used for the conductor 2 of transmission of electric signals, the inner insulating layer 5 of insulated conductor 2, radiation-screening interference screen 7 and be wrapped in outermost external insulation layer 1, it is laminar first conductive layer 21 and the second conductive layer 22 that described conductor 2 comprises cross section, the first described conductive layer 21 and the second conductive layer 22 parallel to each other and lay respectively at the both sides up and down of base material 3, described screen 7 is between inner insulating layer 5 and external insulation layer 1.
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 inner insulating layer 5.
Further, 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 outside conductor 2 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, inner insulating layer 5, first conductive layer 21, adhesive 4, base material 3, adhesive 4, second conductive layer 22, inner insulating layer 5, screen 7 and external insulation layer 1, first conductive layer 21 is parallel with the second conductive layer 22, and width is all less than base material 3 and adhesive 4, simultaneously, this external insulation layer 1 and inner insulating layer 5 all adopt PVC plastic, conductor 2 adopts Copper Foil, base material 3 adopts PI plastic material, screen 7 adopts aluminium foil, inner insulating layer 5 is by base material 3, adhesive 4, conductor 2 is wrapped in inner side, this cable is as power line, its first conductive layer 21 accesses live wire L, second conductive layer 22 accesses zero line N, make electric power transfer.
First conductive layer 21 of access live wire L forms an equivalent capacity C with second conductive layer 22 of access zero line N, the equivalent capacity C be connected across between power line two line (L-N) is also called X electric capacity, its equivalent circuit diagram as shown in Figure 2, simultaneously because equivalent capacity C is 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, D is the distance between pole plate, in this embodiment, ε is the dielectric constant of medium between the first conductive layer 21 and the second conductive layer 22, S is the area of the first conductive layer 21 or the second conductive layer 22, and D is the distance between the first conductive layer 21 and the second conductive layer 22.
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 upper and lower two layers of adhesive 4 and value, when the width of Copper Foil is 5mm, its capacitance at more than 1nf, the successful of the Xc differential mode interference of this capacitance; 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, do not comprising inner insulating layer 5, screen 7 and external insulation layer 1 when, its gross thickness numerical value is between 72.5 μm ~ 465 μm, and current modal sequence number 1., 2. the thickness of two kinds of structures is 72.5 μm respectively, 135 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 cable safer in actual use.
The cross section of second embodiment of the invention as shown in Figure 5, compared with the first embodiment, inner insulating layer 5 adopts reinforced insulation layer, reinforced insulation layer comprises adhesive 4 and insulating material, namely all insulating material is connected with by adhesive 4 in the outside of the first conductive layer 21 and the second conductive layer 22, the insulating material of the present embodiment uses PI plastic material, the vacancy of conductor 2 both sides is also filled with adhesive 4, isolate with screen 7, first conductive layer 21 and the second conductive layer 22 are wrapped in inner side by the adhesive 4 of upper and lower both sides respectively, the thickness specification of PI plastic material common are 12.5 μm, 25 μm, 50 μm three kinds, on the basis of the first embodiment, do not consider screen 7 and external insulation layer 1, namely two layers of adhesive 4 and two-layer PI plastic material is added, its thickness specification is between 122.5 μm ~ 765 μm, by sequence number in Fig. 4 1., 2. two kinds of structures increase by 12.5 μm respectively, the inner insulating layer 5 of 25 μm, its thickness is respectively 122.5 μm and 225 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, external insulation layer 1 is provided with the strengthening part 6 that many strengthening cores are entwined, 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, and its thickness is consistent with 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 insulating barrier 1, therefore does not increase integral thickness, and its thickness is consistent with 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. an anti-interference double-layer flat shielded type cable, it is characterized in that: the anti-interference double-layer flat shielded type cable of described one comprises: base material (3), connect the adhesive (4) of two kinds of parting materials, be used for the conductor (2) of transmission of electric signals, the inner insulating layer (5) of insulated conductor (2), radiation-screening interference screen (7) and be wrapped in outermost external insulation layer (1), it is laminar first conductive layer (21) and the second conductive layer (22) that described conductor (2) comprises cross section, described the first conductive layer (21) and the second conductive layer (22) are parallel to each other and lay respectively at the both sides up and down of base material (3), described screen (7) is positioned between inner insulating layer (5) and external insulation layer (1).
2. the anti-interference double-layer flat shielded type 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 inner insulating layer (5).
3. the anti-interference double-layer flat shielded type cable of one according to claim 1, it is characterized in that: 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 conductor (2) outside 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).
4. the anti-interference double-layer flat shielded type 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).
5. the anti-interference double-layer flat shielded type 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.
6. the anti-interference double-layer flat shielded type 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 |
|---|---|---|---|
| CN201610058575.8A CN105489290A (en) | 2016-01-28 | 2016-01-28 | Anti-interference double-layer flat shielding cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610058575.8A CN105489290A (en) | 2016-01-28 | 2016-01-28 | Anti-interference double-layer flat shielding cable |
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| CN105489290A true CN105489290A (en) | 2016-04-13 |
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| CN201610058575.8A Pending CN105489290A (en) | 2016-01-28 | 2016-01-28 | Anti-interference double-layer flat shielding cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644699A (en) * | 2017-10-25 | 2018-01-30 | 苏州科伦特电源科技有限公司 | Strip conductor formula busbar structure for high current transmission and preparation method thereof |
| CN107731382A (en) * | 2017-10-25 | 2018-02-23 | 苏州科伦特电源科技有限公司 | Wiring conductive row and preparation method thereof |
| CN116869540A (en) * | 2022-04-29 | 2023-10-13 | 武汉联影智融医疗科技有限公司 | Electrocardiosignal acquisition equipment and system |
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| US4926008A (en) * | 1989-05-18 | 1990-05-15 | Hewlett-Packard Company | High capacitance 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 |
| CN102201277A (en) * | 2010-03-26 | 2011-09-28 | 日立电线精密技术株式会社 | Flexible 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 |
| CN204632370U (en) * | 2015-05-05 | 2015-09-09 | 陈景 | A kind of novel tuning fork vehicle-mounted data line |
-
2016
- 2016-01-28 CN CN201610058575.8A patent/CN105489290A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4926008A (en) * | 1989-05-18 | 1990-05-15 | Hewlett-Packard Company | High capacitance 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 |
| CN102201277A (en) * | 2010-03-26 | 2011-09-28 | 日立电线精密技术株式会社 | Flexible 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 |
| CN204632370U (en) * | 2015-05-05 | 2015-09-09 | 陈景 | A kind of novel tuning fork vehicle-mounted data line |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644699A (en) * | 2017-10-25 | 2018-01-30 | 苏州科伦特电源科技有限公司 | Strip conductor formula busbar structure for high current transmission and preparation method thereof |
| CN107731382A (en) * | 2017-10-25 | 2018-02-23 | 苏州科伦特电源科技有限公司 | Wiring conductive row and preparation method thereof |
| CN116869540A (en) * | 2022-04-29 | 2023-10-13 | 武汉联影智融医疗科技有限公司 | Electrocardiosignal acquisition equipment and system |
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Application publication date: 20160413 |
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