CN104810085A - Coaxial cable, and flat cable and cable harness using the same - Google Patents
Coaxial cable, and flat cable and cable harness using the same Download PDFInfo
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- CN104810085A CN104810085A CN201410271705.7A CN201410271705A CN104810085A CN 104810085 A CN104810085 A CN 104810085A CN 201410271705 A CN201410271705 A CN 201410271705A CN 104810085 A CN104810085 A CN 104810085A
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- coaxial cable
- tape
- cable
- coaxial
- cables
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- 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
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
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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
- H01B7/0045—Cable-harnesses
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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
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- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
- Communication Cables (AREA)
Abstract
The invention provides a coaxial cable which can maintain excellent electrical performances even if the easy bending of a wire is carried out, and a shielding is not liable to be unlocked. The invention also discloses a flat cable and a cable harness, which employ the coaxial cable. The coaxial cable (100) is provided with a conductor (101), an insulator (102) surrounding the conductor (101), an insulating belt (103) wound around the insulator (102), and a shielding belt (104) wound around the insulating belt (103). The shielding belt (104) is provided with a binding layer (105) which is disposed on a surface opposite to the insulating belt (103), and is bonded with the insulating belt (103) through the binding layer (105).
Description
Technical field
The coaxial cable that the present invention relates to applicable transmitting high-frequency signal and the flat cable using it and bunch of cables.
Background technology
In the electronic equipments such as LCD TV, as the inside distribution that main part is electrically connected with the display part of liquid crystal display etc., as shown in Figure 7, use coaxial cable 700, described coaxial cable 700 possesses: by stranded for many wire rods 701 and formed inner conductor 702, be located at insulator 703 around inner conductor 702, by the external conductor formed around the surrounding of insulator 703 by many wire rods 704 horizontal stroke (horizontal stroke is around screen) 705 and the chuck (jacket) 706 that is located at around external conductor 705.
In recent years, along with the large screen etc. of LCD TV, the information that processes in electronic equipment increases, and therefore requires these information as the further high capacity of the coaxial cable of electric signal transmission and high speed.Specifically, requirement can the coaxial cable of signal of frequency till about the frequency 5.0GHz of transfer ratio about 3.7GHz Geng Gao in the past.
But, along with the frequency gets higher of the signal of telecommunication, electric current concentrates on the surface of inner conductor (many wire rods) because of skin effect, and the net sectional area of inner conductor reduces, therefore the signal of telecommunication frequency rise while resistance (AC resistance) uprise, conductor losses increase.
In addition, due to the large screen etc. of LCD TV, the maximization of electronic equipment is advanced, therefore require the line length of inner distribution to add from about 40cm in the past to grow to about 100cm, by this lengthening, resistance (conductor resistance) also uprises, and therefore conductor losses increases.
The method preventing conductor losses from increasing as suppressing their resistance to rise, can consider the external diameter increasing inner conductor.Such as, by the external diameter of inner conductor is changed to 36AWG from 38AWG (American wire gage), about resistance can be made to be reduced to half.
But if use the inner conductor of 36AWG, make and possess the coaxial cable that the horizontal characteristic impedance around screen and chuck is 50 Ω, then the external diameter of coaxial cable exceedes prescribed distance, the i.e. 0.5mm of liquid crystal display television connector.
Therefore, with regard to possessing with regard to the horizontal coaxial cable around screen and chuck, the method for the external diameter increasing inner conductor is utilized to suppress resistance rise and prevent conductor losses increase from being difficult.
To this, in patent documentation 1, describe the wire harness possessing conductor, be located at the insulator around conductor and the band screen across the mask tape of adhesion coating lap wound around insulator.
According to the wire harness of this band screen, by omitting chuck, use the mask tape that thickness is thin compared with the screen with horizontal stroke, it is horizontal less around the coaxial cable of screen and chuck than possessing to make external diameter, even if increase the external diameter of conductor, also the external diameter of the cable of band screen can be suppressed to prescribed distance, i.e. below the 0.5mm of liquid crystal display television connector.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 8-77835 publication
Patent documentation 2: Japanese Unexamined Patent Publication 8-77836 publication
Summary of the invention
The problem that invention will solve
But, usually, in the coaxial cable of carry high frequency electrical signals (high-frequency signal), in order to shorten the propagation delay time, need the dielectric constant reducing insulator, and in order to suppress the increase of dielectric loss of rising with transmission speed, needing the dielectric loss angle tangent reducing insulator, therefore usually using dielectric constant, dielectric loss angle tangent are little, dielectric property is excellent fluororesin as the material of insulator.
But because fluororesin is chemically highly stable and low with the compatibility of other materials, in the cable of the band screen therefore recorded in patent documentation 1, the insulator formed by fluororesin is possible insufficient with being bonded with of the adhesion coating of mask tape.
Consequently, mask tape is only bonding in the overlapping part of the mask tape of lap wound, therefore produces following problem: the mask tape of lap wound misplaces and easily unties, because this is untied, between adjacent mask tape, produce gap, thus the electrical characteristics such as shielding character, characteristic impedance worsen.
Particularly, when being used as the inside distribution of LCD TV, bending or the bending distribution of the easy stress application such as L shape distribution is necessary, at this, bending or dogleg section mask tape is easily untied, and the distance between conductor and mask tape easily becomes unstable on whole cable length direction, therefore the large fluctuation of likely occurrence features impedance on cable length direction, and electrical characteristics during transmitting high-frequency signal significantly worsen.
Therefore, the object of the invention is to, carry out the bending of easy stress application or bending distribution even if provide, mask tape is also not easily untied, and can maintain the coaxial cable of excellent electrical characteristics and use its flat cable and bunch of cables.
For the method for dealing with problems
The present invention proposed to realize this object is a kind of coaxial cable, it possesses: conductor, the mask tape being located at insulator around described conductor, being wrapped in the insulating tape around described insulator and being wrapped in around described insulating tape, described mask tape has the adhesive linkage be located on the face relative with described insulating tape, and bonding with described insulating tape by described adhesive linkage.
Preferred described insulator is formed by fluororesin.
Preferred described mask tape lap wound become more than 1/5 circle and 1/2 circle below.
Preferred described mask tape has insulating barrier, and described insulating tape and described insulating barrier are formed by PETG.
Preferred described mask tape has metal level, and described metal level is formed by aluminium.
Preferred described insulating tape has the adhesive linkage be located on the face relative with described mask tape.
In addition, the present invention is a kind of flat cable, and many described coaxial cables configure with the prescribed distance of connector side by side at terminal part.
Also column direction preferably along many described coaxial cables inweaves fibrous structures, to make it through many described coaxial cables.
Preferred described fibrous structures with the length of the described coaxial cable of every 1cm be 3 come and go above and 10 come and go following weaving densities and inweave.
In addition, the present invention is a kind of bunch of cables, is connected with connector at the terminal part of described flat cable.
Preferred described flat cable is connected with described connector by metal tape.
The surrounding of preferred described flat cable be coated to by conductive fabric.
Invention effect
According to the present invention, carry out the bending of easy stress application or bending distribution even if can provide, mask tape is also not easily untied, and can maintain the coaxial cable of excellent electrical characteristics and use its flat cable and bunch of cables.
Accompanying drawing explanation
Fig. 1 is the sectional view that coaxial cable of the first embodiment of the present invention is shown.
Fig. 2 is the sectional view that coaxial cable of the second embodiment of the present invention is shown.
Fig. 3 is the sectional view that coaxial cable of the third embodiment of the present invention is shown.
Fig. 4 is the sectional view that coaxial cable of the fourth embodiment of the present invention is shown.
Fig. 5 is the plane graph of flat cable and the bunch of cables illustrating that embodiments of the present invention relate to.
Fig. 6 is the sectional view of the metal tape that Fig. 5 is shown.
Fig. 7 is the sectional view that the coaxial cable that prior art relates to is shown.
Symbol description
100 coaxial cables
101 conductors
102 insulators
103 insulating tapes
104 mask tapes
105 adhesive linkages
106 wire rods
107 metal levels
200 coaxial cables
201 insulating tapes
202 resin beds
203 adhesive linkages
300 coaxial cables
301 mask tapes
302 insulating barriers
400 coaxial cables
500 flat cables
501 fibrous structures
600 bunchs of cables
601 connectors
602 conductive fabrics
603 grounding electrodes
604 metal tapes
605 conductivity adhesive linkages
606 metal connecting layer
Embodiment
Below, with reference to the accompanying drawings, the preferred embodiment of the present invention is described.
First, with reference to Fig. 1, coaxial cable 100 of the first embodiment is described.
The feature of coaxial cable 100 of the first embodiment is, possess: conductor 101, the mask tape 104 being located at insulator 102 around conductor 101, being wrapped in the insulating tape 103 around insulator 102 and being wrapped in around insulating tape 103, mask tape 104 has the adhesive linkage 105 be located on the face relative with insulating tape, and bonding with insulating tape 103 by adhesive linkage 105.
This coaxial cable 100 is in the electronic equipments such as LCD TV, notebook computer or printer, and the main inside distribution being used as to be electrically connected with the display part of liquid crystal display etc. by main part, majority is installed with the form of flat cable, bunch of cables.
Conductor 101 forms the inner conductor of coaxial cable structure, by stranded for the many wire rods 106 formed by the copper of excellent electric conductivity, aluminium or their alloy etc. and formed.These wire rods 106 also can be applied with the plating process utilizing tin, silver or nickel etc. in its surface.
Insulator 102 forms the dielectric of coaxial cable structure, is formed by fluororesin such as tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoraoethylene-hexafluoropropylene copolymer (FEP) or ethylene-tetrafluoroethylene copolymers (ETFE).Fluororesin is little due to dielectric constant, dielectric loss angle tangent, therefore by using fluororesin as the material of insulator 102, suppresses the increase of the dielectric loss risen with transmission speed while suitably can shortening the propagation delay time.
Insulating tape 103 is formed with the resin bed formed by PETG (PET).Because the material of PETG to the adhesive linkage 105 illustrated hereinafter has excellent cementability, therefore by using PETG as the material of insulating tape 103, can to insulating tape 103 bonding mask tape 104 securely.
Mask tape 104 also has metal level 107 except adhesive linkage 105.This metal level 107 forms the external conductor of coaxial cable structure, and in order to guarantee sufficient shielding character, the aluminium being 2 μm to about 10 μm by thickness is formed.Even if also burn into variable color can be prevented by the oxide scale film be created on surface because aluminium is exposed in outside air, therefore by using aluminium as the material of mask tape 104, even if omission chuck, also beautiful appearance can be kept while the electrical characteristics desired by long term maintenance.
Adhesive linkage 105 is formed by Polyester hot melt mould assembly bonding agent.Because the material of Polyester hot melt mould assembly bonding agent to the metal level 107 above illustrated has excellent cementability, therefore by using Polyester hot melt mould assembly bonding agent as the material of adhesive linkage 105, adhesive linkage 105 and the stripping of metal level 107 can be prevented, they can be processed integratedly as mask tape 104.
At this, although use PETG as the material of insulating tape 103, use Polyester hot melt mould assembly bonding agent as the material of adhesive linkage 105, use aluminium as the material of metal level 107, as long as but they can play the combination of excellent cementability mutually, then also can use other material.
Preferably this mask tape 104 lap wound becomes more than 1/5 circle and below 1/2 circle.This is because, when mask tape 104 lap wound becomes to be less than 1/5 circle, the overlapping of mask tape 104 is few, and mask tape 104 bond area each other diminishes, and becomes easily untie during bending or bending distribution in the winding spacing dislocation of bending or dogleg section mask tape 104.In addition, when mask tape 104 lap wound becomes more than 1/2 circle, produce the part of the triple winding in mask tape 104, make the external diameter of coaxial cable 100 become large.
What be explained is, the reason of lap wound mask tape 104 be because, such as, when mask tape 104 dock be wound around, during bending or bending distribution bending or dogleg section produce non-conductively-closed band 104 the gap that is coated to, there is large fluctuation in impedance on cable length direction.
So far, as described above, coaxial cable 100 of the first embodiment possess be wrapped in around insulator 102 while adhesive linkage 105 had to the insulating tape 103 of excellent cementability, described insulator 102 does not almost have cementability to the adhesive linkage 105 be located on mask tape 104.
Therefore, mask tape 104 is adhered to insulating tape 103 with all-round fastness under the state maintaining winding spacing, thus unties and electrical characteristics deterioration in bending or dogleg section mask tape 104 when can prevent bending or bending distribution.
In addition, because insulating tape 103 is not adhered to insulator 102, therefore when bending or bending distribution or process time, insulating tape 103 likely with in the state of cylindrical shape at cable length side's upward sliding, but because mask tape 104 is adhered to insulating tape 103 securely, therefore do not have the situation that mask tape 104 is untied and electrical characteristics worsen.
Not only so, when bending or bending distribution or process time, mask tape 104 at cable length side's upward sliding, thus makes the stress dispersion being applied to insulator 102, mask tape 104 together with insulating tape 103, can improve resistance to bend(ing).
In addition also likely consider, in coaxial cable 100 of the first embodiment, owing to omitting the chuck be located at around external conductor in the past, thus mask tape 104 becomes outermost layer, the difference of height portion being formed in the overlapping part of mask tape 104 is exposed to outside, and this difference of height portion to be tangled when distribution etc. and mask tape 104 is easily untied for starting point with difference of height portion thus.
But by being located at the adhesive linkage 105 on mask tape 104, the overlapping part of mask tape 104 is also firmly fixed, and does not therefore have situation about untiing for starting point with difference of height portion mask tape.
And then, according to coaxial cable 100 of the first embodiment, owing to omitting chuck, use the mask tape 104 that thickness is thin compared with the screen with horizontal stroke, therefore horizontal compare around screen can reduce external diameter with the coaxial cable in the past of chuck with possessing, even if increase the external diameter of conductor 101, also the external diameter of coaxial cable 100 can be suppressed to prescribed distance, i.e. below the 0.5mm of liquid crystal display television connector.
Next, with reference to Fig. 2, coaxial cable 200 of the second embodiment is described.
Coaxial cable 200 of the second embodiment is compared with coaxial cable 100 of the first embodiment, difference is, insulating tape 201, except the resin bed 202 formed by PETG, also has the adhesive linkage 203 be located on relative face, mask tape 104.
Adhesive linkage 203 is formed by Polyester hot melt mould assembly bonding agent in the same manner as the adhesive linkage 105 be located on mask tape 104.Thus, adhesive linkage 105 and adhesive linkage 203 form same material joint each other, thus can improve adhesive strength further.
In addition, by adhesive linkage 203, the overlapping part of insulating tape 201 is also bonding, and therefore the winding spacing of insulating tape 201 is more difficult to dislocation, can more reliably prevent untiing of insulating tape 201.
Therefore, according to coaxial cable 200 of the second embodiment, except the benefit of coaxial cable 100 of the first embodiment, even if carrying out bending or bending distribution with harsher angle of bend, bending radius, mask tape 104 is also not easily untied, and can maintain excellent electrical characteristics.
Next, with reference to Fig. 3, coaxial cable 300 of the third embodiment is described.
Coaxial cable 300 of the third embodiment is compared with coaxial cable 100 of the first embodiment, and difference is, mask tape 301 also has insulating barrier 302 except adhesive linkage 105 and metal level 107.
Insulating barrier 302 is such as located between adhesive linkage 105 and metal level 107, is formed by PETG.Because PETG has excellent mechanical property, therefore by using PETG as the material of insulating barrier 302, the low mechanical strength of adhesive linkage 105, metal level 107 can be compensated.
Therefore, according to coaxial cable 300 of the third embodiment, except the benefit of coaxial cable 100 of the first embodiment, the mechanical strength as outermost mask tape 301 can also being improved, the reduction of the mechanical strength caused because omitting chuck can being relaxed.
In addition, around insulating tape 103 during winding mask tape 301, be wound around under the state of tension force mask tape 301 being applied to regulation, but by improving the mechanical strength of mask tape 301, not easily there is the fracture etc. caused by the tension force applied, therefore, it is possible to be wound around mask tape 301 tightly, mask tape 301 can be adhered to insulating tape 103 more firmly.
Next, with reference to Fig. 4, coaxial cable 400 of the fourth embodiment is described.
Coaxial cable 400 of the fourth embodiment is compared with coaxial cable 100 of the first embodiment, difference is, insulating tape 201 is except the resin bed 202 formed by PETG, also there is the adhesive linkage 203 be located on the face relative with mask tape 104, and, mask tape 301, except adhesive linkage 105 and metal level 107, also has insulating barrier 302.
That is, coaxial cable 400 of the fourth embodiment forms the form combined with coaxial cable 300 of the third embodiment by coaxial cable 200 of the second embodiment.
Therefore, according to coaxial cable 400 of the fourth embodiment, except the benefit of coaxial cable 100 of the first embodiment, the benefit of coaxial cable 200 of the second embodiment and coaxial cable 300 both sides of the third embodiment can also be obtained.
Next, with reference to Fig. 5, as an example, the flat cable 500 and bunch of cables 600 that employ coaxial cable 100 of the first embodiment are described, in the nature of things, the 2nd also can be used to form flat cable and bunch of cables to coaxial cable 200 to 400 of the fourth embodiment.
First, the feature of flat cable 500 of the present embodiment is, many coaxial cables 100 configure with the prescribed distance of liquid crystal display television connector, i.e. 0.5mm spacing side by side at terminal part.
In addition, the also column direction along many coaxial cables 100 inweaves fibrous structures 501, to make it through many coaxial cables 100.
Specifically, fibrous structures 501 inweaves as follows: from the one end in the cable length direction of flat cable 500 to the other end, the side of (many coaxial cables 100 and column directions) is in the width direction to opposite side, while coming and going with zigzag between many coaxial cables 100, many coaxial cables 100 are fettered into flat pattern and fixing.
Thus, form while all coaxial cables 100 of flat cable 500 are fettered by fibrous structures 501, many coaxial cables 100 are configured to every 1 and are close together each other and arrange with uniform spacing, and therefore the width of flat cable 500 diminishes, and can realize miniaturization.
In addition, fibrous structures 501 preferably with the length of the coaxial cable of every 1cm be 3 come and go above and 10 come and go following weaving densities and inweave.This is because, when fibrous structures 501 with the length of the coaxial cable of every 1cm be less than 3 round weaving densities inweave, the gap produced between adjacent fibrous structures 501 becomes large, during bending or bending distribution or process time, coaxial cable 100 is run out of from this gap and gives prominence to, in coaxial cable 100, likely produce bending, adjoint therewith distortion broken string, electrical characteristics are worsened.In addition, when fibrous structures 501 inweaves with the weaving density that the length of the coaxial cable of every 1cm is round more than 10, the gap produced between adjacent fibrous structures 501 almost disappears, the resilience force grow of fibrous structures 501, therefore bending or bending or process become difficulty, and the shape after bending or bending cannot maintain and return to original shape, is unfavorable for bending or bending distribution thus.
And then, although inweave fibrous structures 501 on the whole cable length direction of flat cable 500, but responsible easy with the installation of the connector of the connection of equipment side in order to make, also can remove the fibrous structures 501 inweaved on the both ends in the cable length direction of flat cable 500.
Now, not with operating especially by dissolution with solvents fibrous structures 501 grade, only the pull-out of the leading section of fibrous structures 501 just easily can be carried out being separated of coaxial cable 100 and fibrous structures 501, therefore, it is possible to the fitting operation of simplification connector, the burden that operating personnel bear can be alleviated.
The processbearing astrocyte that fibrous structures 501 is preferred high by percentage elongation, initial modulus is low, specifically, be preferably more than 500% by percentage elongation and less than 900%, 300% elongation recovery rate when extending is more than 90%, is more than 5cN/dtex for 300% initial modulus extended and the polyurethane elastomeric fiber of below 30cN/dtex is formed.
Percentage elongation is set to more than 500% and the reason of less than 900% be because, if be less than 500%, then when making flat cable 500 bend, when making the spacing of many coaxial cables 100 change in the part in cable length direction according to desired configuration, fibrous structures 501 fully cannot follow its bending, change.In addition, if more than 900%, then fibrous structures 501 fetters many coaxial cables 100 and fixing function reduces.
Reason elongation recovery rate during 300% elongation being set to more than 90% is because if be less than 90%, then when making flat cable 500 bend, fibrous structures 501 can be stretched out, or flat cable 500 is difficult to return to the shape before bending.
The initial modulus being used for 300% elongation is set to more than 5cN/dtex and the reason of below 30cN/dtex be because, if be less than 5cN/dtex, when then inweaving fibrous structures 501 between many coaxial cables 100, cannot with fibrous structures 501 fully constraint many coaxial cables 100, the flat cable 500 of neat shape cannot be manufactured, and need the rear operation of the shape for neat flat cable 500, and cause manufacturing cost to rise.In addition, if more than 30cN/dtex, then when inweaving fibrous structures 501 between many coaxial cables 100, coaxial cable 100 is tightly bound by fibrous structures 501, in coaxial cable 100, likely produce bending, adjoint therewith distortion broken string, electrical characteristics are worsened.
That is, by the initial modulus being used for 300% elongation is set to more than 5cN/dtex and below 30cN/dtex, when inweaving fibrous structures 501 between many coaxial cables 100, can coaxial cable 100 not inweaved with not applying unnecessary load.
As the polyurethane elastomeric fiber meeting these conditions, such as, there is the ROICA (registered trade mark) of Asahi Chemical Ind.In addition, to improve, slimming from the viewpoint of the intensity of flat cable 500, fibrous structures 501 is preferably formed by monofilament.
By using such polyurethane elastomeric fiber as fibrous structures 501, when inweaving fibrous structures 501 between many coaxial cables 100, inweave under the state greatly can extended at the fibrous structures 501 making fiber number very thin.
Such as, more than 17dtex can be made and the fibrous structures 501 of below 45dtex inweaves under extending the state being 300%.Due to make more than 17dtex and the fibrous structures 501 of below 45dtex to extend be the external diameter of the fibrous structures 501 of the state of 300% be below 0.04mm, therefore, it is possible to suppress the thickness of the spacing of many coaxial cables 100, flat cable 500 for below 0.50mm, compared with the pastly further miniaturized and slimming can be realized.
After inweaving fibrous structures 501, be configured to many coaxial cables 100 by the elongation restoring force of fibrous structures 501 and be close together each other, but due to the percentage elongation of fibrous structures 501 high, therefore do not have situation coaxial cable 100 being applied to excessive power.
Therefore, even if when the external diameter of coaxial cable 100 is little, also can not apply to produce little bending such stress to coaxial cable 100 because of the elongation restoring force of fibrous structures 501, when not making coaxial cable 100 produce bending, adjoint therewith distortion broken string, fibrous structures 501 inweaves between many coaxial cables 100.
And, the spacing of many coaxial cables 100 can be reduced when not applying unnecessary load to coaxial cable 100, the width that can reduce flat cable 500 compared with the past.
And then the fibrous structures 501 formed by the polyurethane elastomeric fiber as above illustrated also can fully extend inweaving after between many coaxial cables 100, and Telescopic for Width can be given to flat cable 500.
Therefore, when bending or bending distribution or process time, coaxial cable 100 can be made to move freely and the stress that makes to be applied to coaxial cable 100 disperses effectively to the Width of flat cable 500.
Thus, the flat cable 500 related to according to the present embodiment, even if by flat cable 500 along cable length direction bending etc., the stress being applied to coaxial cable 100 also can be relaxed, the deterioration of electrical characteristics of adjoint bending etc., the broken string of coaxial cable 100 can be prevented.
Secondly, the feature of bunch of cables 600 of the present embodiment is, is connected with connector 601 at flat cable 500 terminal part.
The surrounding of flat cable 500 formed together with the metal level 107 of mask tape 104 conductive fabric 602 (in the accompanying drawings, in order to illustrate that other components are described with single dotted broken line) of dual shield Rotating fields be coated to.Thereby, it is possible to improve shielding character further, the electromagnetism property taken into account can be realized.
Connector 601 is made up of liquid crystal display television connector, has the multiple signal electrodes (not shown) be electrically connected respectively with the conductor 101 of many coaxial cables 100 and the shared grounding electrode 603 be electrically connected with the metal level 107 of many coaxial cables 100.
These flat cables 500 are connected with connector 601 by metal tape 604.
As shown in Figure 6, metal tape 604 has the conductivity adhesive linkage 605 be located on the face relative with the grounding electrode 603 of the metal level 107 of many coaxial cables 100, connector 601, bonding by conductivity adhesive linkage 605 and metal level 107, grounding electrode 603.This conductivity adhesive linkage 605 is formed by the conductive adhesive etc. epoxy resin and silver mixed.
In addition, metal tape 604 also has metal connecting layer 606 except conductivity adhesive linkage 605.Metal level 107 is electrically connected with grounding electrode 603 by this metal connecting layer 606, and it is formed by the copper of excellent electric conductivity, aluminium or their alloy etc.
Consist of these, the bunch of cables 600 related to according to the present embodiment, can use metal tape 604 to be electrically connected in the lump with grounding electrode 603 by metal level 107, therefore, it is possible to significantly alleviate with the operation burden of flat cable 500 with the connection of connector 601.
As mentioned above, according to the present invention, carry out the bending of easy stress application or bending distribution even if provide, mask tape 104 is also not easily untied, and can maintain the coaxial cable 100 of excellent electrical characteristics and use its flat cable 500 and bunch of cables 600.
Be explained, the execution mode as above illustrated is an example specifically of the present invention only, can carry out various change in the scope not departing from main idea of the present invention.Such as, in this manual, as an example, describe the situation using liquid crystal display television connector, but also can use the connector of other types.
Claims (12)
1. a coaxial cable, is characterized in that, possesses:
Conductor,
Be located at the insulator around described conductor,
Be wrapped in insulating tape around described insulator and
Be wrapped in the mask tape around described insulating tape,
Described mask tape has the adhesive linkage be located on the face relative with described insulating tape, and bonding with described insulating tape by described adhesive linkage.
2. coaxial cable according to claim 1, described insulator is formed by fluororesin.
3. coaxial cable according to claim 1 and 2, described mask tape lap wound become more than 1/5 circle and 1/2 circle below.
4. the coaxial cable according to any one in claims 1 to 3, described mask tape has insulating barrier,
Described insulating tape and described insulating barrier are formed by PETG.
5. the coaxial cable according to any one in Claims 1-4, described mask tape has metal level,
Described metal level is formed by aluminium.
6. the coaxial cable according to any one in claim 1 to 5, described insulating tape has the adhesive linkage be located on the face relative with described mask tape.
7. a flat cable, is characterized in that, many coaxial cables described in any one in claim 1 to 6 configure with the prescribed distance of connector side by side at terminal part.
8. flat cable according to claim 7, the also column direction along many described coaxial cables inweaves fibrous structures, to make it through many described coaxial cables.
9. flat cable according to claim 8, described fibrous structures with the length of the described coaxial cable of every 1cm be 3 come and go above and 10 come and go following weaving densities and inweave.
10. a bunch of cables, is characterized in that, the terminal part of the flat cable described in any one in claim 7 to 9 is connected with connector.
11. bunchs of cables according to claim 10, described flat cable is connected with described connector by metal tape.
12. bunchs of cables according to claim 10 or 11, the surrounding of described flat cable be coated to by conductive fabric.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-011390 | 2014-01-24 | ||
| JP2014011390A JP2015138750A (en) | 2014-01-24 | 2014-01-24 | Coaxial cable, and flat cable and cable harness using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104810085A true CN104810085A (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410271705.7A Pending CN104810085A (en) | 2014-01-24 | 2014-06-18 | Coaxial cable, and flat cable and cable harness using the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2015138750A (en) |
| KR (1) | KR20150088698A (en) |
| CN (1) | CN104810085A (en) |
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| CN108538488A (en) * | 2017-03-03 | 2018-09-14 | 日立金属株式会社 | Coaxial cable and cable with braid shielded |
| CN111599528A (en) * | 2019-02-20 | 2020-08-28 | 日立金属株式会社 | Coaxial cable |
| CN111724929A (en) * | 2019-03-18 | 2020-09-29 | 日立金属株式会社 | Coaxial cable for movable part |
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| JP6937208B2 (en) * | 2017-09-28 | 2021-09-22 | 東京特殊電線株式会社 | Coaxial flat cable |
| CN108336463B (en) * | 2017-12-20 | 2020-04-14 | 合肥远发信息科技有限责任公司 | Bending-resistant heat-dissipation copper-based alloy radio-frequency coaxial cable |
| JP6691672B2 (en) * | 2019-03-22 | 2020-05-13 | 日立金属株式会社 | coaxial cable |
| JP7247758B2 (en) * | 2019-05-31 | 2023-03-29 | 住友電装株式会社 | Wiring material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5033779U (en) * | 1973-07-24 | 1975-04-11 | ||
| JPS5533468U (en) * | 1978-08-28 | 1980-03-04 | ||
| JPH0310425U (en) * | 1989-06-19 | 1991-01-31 | ||
| JPH0368316U (en) * | 1989-11-02 | 1991-07-04 | ||
| JPH0429120U (en) * | 1990-06-29 | 1992-03-09 | ||
| JP2007221468A (en) * | 2006-02-16 | 2007-08-30 | Kyocera Corp | Electronic apparatus |
| JP5326775B2 (en) * | 2009-04-24 | 2013-10-30 | 住友電気工業株式会社 | Coaxial wire and manufacturing method thereof |
| JP2011100651A (en) * | 2009-11-06 | 2011-05-19 | Hitachi Cable Fine Tech Ltd | Flat cable harness |
| JP2013054991A (en) * | 2011-09-06 | 2013-03-21 | Hitachi Cable Fine Tech Ltd | Flat cable and cable harness including the same |
| JP2013239270A (en) * | 2012-05-11 | 2013-11-28 | Hitachi Cable Ltd | Connection structure, connection method, and differential signal transmission cable |
-
2014
- 2014-01-24 JP JP2014011390A patent/JP2015138750A/en active Pending
- 2014-05-21 KR KR1020140060827A patent/KR20150088698A/en not_active Application Discontinuation
- 2014-06-18 CN CN201410271705.7A patent/CN104810085A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538488A (en) * | 2017-03-03 | 2018-09-14 | 日立金属株式会社 | Coaxial cable and cable with braid shielded |
| CN108538488B (en) * | 2017-03-03 | 2020-05-08 | 日立金属株式会社 | Coaxial cable and cable with braided shield |
| CN107256732A (en) * | 2017-07-25 | 2017-10-17 | 上饶市达淋新材料有限公司 | FFC flat wires |
| CN111599528A (en) * | 2019-02-20 | 2020-08-28 | 日立金属株式会社 | Coaxial cable |
| CN111724929A (en) * | 2019-03-18 | 2020-09-29 | 日立金属株式会社 | Coaxial cable for movable part |
| CN111724929B (en) * | 2019-03-18 | 2023-06-09 | 株式会社博迈立铖 | Coaxial cable for movable part |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015138750A (en) | 2015-07-30 |
| KR20150088698A (en) | 2015-08-03 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |
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| WD01 | Invention patent application deemed withdrawn after publication |