CN2650300Y - Audio-video signal wire - Google Patents
Audio-video signal wire Download PDFInfo
- Publication number
- CN2650300Y CN2650300Y CN 200320102303 CN200320102303U CN2650300Y CN 2650300 Y CN2650300 Y CN 2650300Y CN 200320102303 CN200320102303 CN 200320102303 CN 200320102303 U CN200320102303 U CN 200320102303U CN 2650300 Y CN2650300 Y CN 2650300Y
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- video signal
- wire
- signal line
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Abstract
The utility model relates to an audio and video signal connecting wire, which is formed by solid conductors with different cross section areas in parallel, each conductor is respectively insulated and then coated in an insulation layer, wherein, the quantity of conductors with different cross section areas are unspecified. Wherein, a wire is formed by multiple conductors with different cross section areas and mutually insulated, in particular to the conductors with relative small cross section areas, which adopt a copper foil wire or an enameled wire or a silk-covered wire, not only the OD of cable is reduced and the tensile strength is improved, but also the skin effect is reduced, high frequency transfer is realized; the conductors with higher cross section areas are favorable for rapid passing of low frequency, thereby realizing the phase synchronization of high and low frequency signals, and the optimum balancing of full frequency band.
Description
Technical field
The utility model relates to a kind of signal connecting line that is applied in audio frequency and video, especially a kind of a kind of connecting line that adopts the long-pending conductor of multiply varying cross-section to come audio/video signal transmission jointly.
Background technology
It is well known fact that the electric wire field adopts conductor to come transmission signals, and selects the long-pending conductor of varying cross-section according to the size of transmission current.In general audio frequency and video electric wire field, determine that the Consideration of conductor cross-sectional area size mainly contains three: the size of current that it conducted; The tensile strength that it need bear; The external diameter size that it is required.General according to the conductor of taking all factors into consideration other factors selection different-diameter after the conductor cross-sectional area that calculates again.
Electric current exists kelvin effect in the transmission course of electric wire, when promptly electric current flows through in conductor, produced electromagnetic field simultaneously around electric wire; When frequency raise, these electromagnetic fields made electronics more and more flow to surface of conductors, made conductor central authorities present " vacuum " state for electronics, and the central authorities of conductor do not have electronics and pass through.Such as under the frequency of 1MHz, skin depth is 0.19812mm (95% electric current accumulates in the subepidermal skin depth); Such as under the frequency of 1GHz, skin depth is 0.019812mm again.The transmission of electric current only is confined to the top layer of conductor like this, and the conductor material and the size that surpass skin depth do not act on for signal.So, for high-frequency signal transmission, be more prone to the conductor that adopts diameter less, because the space that does not have electronics to pass through in the middle of the less conductor of diameter can be very little, thereby the utilance of material improves greatly.
Yellow gold line strength aspect is more much better than pure copper wire, and the general copper cash of its electrical conductivity and strength ratio promotes more than the several times, and yellow gold is still high, the easiest processing of intensity and the most practical superconductor electric wire material.In the audio frequency and video electric wire, use the electric wire of yellow gold to have characteristics such as transmission speed is fast, gentle in voice, transparent feel is good.
Silk-covered wire is oblique a kind of synthetic fibres of bag (as nylon etc.) and forming on single or stranded lead, and nylon yarn can play insulating effect.Use silk-covered wire, thereby the external diameter that not only can reduce heart yearn reduces the external diameter of whole electric wire; And can strengthen the tensile strength of electric wire, strengthen the useful life of electric wire.
Enamelled wire is an insulation paint film of coating one or more layers at the conductive surface of high-purity, high conductivity, and drying is shaped and makes.Because it is very thin that the insulating varnish thickness on enamelled wire surface can be accomplished, replaced using other insulator to insulate, can reduce the insulation external diameter of electric wire greatly, especially use under the situation of multiply enamelled wire at needs.
Copper foil wire is to twine a very narrow banded Copper Foil to form in filaments such as some strands of nylon yarns or cotton thread outside.Because the copper foil wire center is a filament, use copper foil wire to replace general conductor, can strengthen the tension and the bending resistance folding endurance of electric wire.The conductor of copper foil wire increases travel distance with the multiply canoe, and its surface area is increased, and kelvin effect reduces, and helps the transmission of high frequency.
Summary of the invention
The purpose of this utility model is to provide a kind of audio-video signal line of new structure, and its technical problem that will solve is that the signal (for example high, medium and low frequency) of different frequency range can be set out simultaneously and arrival simultaneously, avoids producing phase difference as far as possible.
The utility model adopts following technical scheme for achieving the above object: the conductor part of audio-video signal line of the present utility model is to be arranged side by side by the descending conductor of cross-sectional area to constitute, and wherein each conductor insulation separately respectively, is coated within the insulating barrier after stranded.
The cross section of solid conductor of the present utility model is the conductor of solid circles and flat pattern.
The conductor of solid circles of the present utility model and flat pattern is that the descending serial lead of cross-sectional area is formed.
The conductive material of solid circles of the present utility model and flat pattern is a yellow gold.
The conductor of small cross sectional is made up of the copper foil wire more than two in the audio-video signal line of the present utility model.
The conductor of small cross sectional is made up of the enamelled wire more than two in the audio-video signal line of the present utility model.
The conductor of small cross sectional is made up of the silk-covered wire more than two in the audio-video signal line of the present utility model.
The utility model compared with prior art, the feature that adopts the multicore audio frequency and video line of said structure is the response balance very of high, medium and low frequency, belongs to neutral and definition is preferably arranged.Because the audio frequency and video line adopts the split conductor design, different and the independent insulation of each bar heart yearn thickness, well-known thin heart yearn helps transmitting high-frequency signal, thick heart yearn helps transmitting low frequency signal, thick like this, carefully and three the thinnest heart yearn mutually insulateds take their own roads for high, medium and low frequency exactly, be independent of each other.Thinner lead is used to improve the phase characteristic of high frequency, makes its fidelity higher, and tonequality is more pure.The audio frequency and video line that this high, medium and low frequency is parted company with each other, well water does not intrude into river water can be obtained unique audio frequency and video effect.
Description of drawings
Fig. 1 is the section structure schematic diagram of one of the utility model specific embodiment.
Fig. 2 is two a section structure schematic diagram of the utility model specific embodiment.
Fig. 3 is three a section structure schematic diagram of the utility model specific embodiment.
Fig. 4 is three the heart yearn numbering schematic diagram of the utility model specific embodiment.
Fig. 5 is four a section structure schematic diagram of the utility model specific embodiment.
Fig. 6 is five a section structure schematic diagram of the utility model specific embodiment.
Fig. 7 is six a section structure schematic diagram of the utility model specific embodiment.
Embodiment
As shown in Figure 1, copper foil wire 1 is formed first heart yearn with its insulator 2, and thinner solid conductor 3 is formed another root heart yearn with its insulator 4, and thicker solid conductor 5 is formed the 3rd heart yearn with its insulator 6; The cross section is that rectangular flat conductor 10 and insulator 9 thereof are formed the 4th heart yearn; Carry out the stranded twisted wire that forms after the heart yearn that is made of the long-pending conductor of varying cross-section of different sizes, different radicals makes up mutually, twisted wire adds the Audio and Video Signal Cable that screen 8 back coated insulation bodies 7 constitute one of the utility model specific embodiments.
Copper foil wire in one of above-mentioned utility model specific embodiment also can be enamelled wire or silk-covered wire.
As shown in Figure 2, it is the section structure schematic diagram of the utility model specific embodiment two, and wherein 11 is solid conductor (totally two), and 12 is multiply enamelled wire (totally two), and 13 is insulator, and 14 for conduction PVC, is screen.Wherein behind solid conductor and the multiply enamelled wire mutually insulated, the stranded twisted wire that forms mutually.Twisted wire adds screen 15 back coated insulation bodies 16 and constitutes two Audio and Video Signal Cable of the utility model specific embodiment.
Above-mentioned utility model specific embodiment two in enamelled wire also can be copper foil wire or silk-covered wire.
As shown in Figure 3, it is the section structure schematic diagram of the utility model specific embodiment three.Wherein 17 is solid circles conductor (totally two), and 18 is its insulator, and 19 is the thin copper intertwist body of multiply (totally four), and 20 is its insulator, and 21 is obturator, and 22 are conduction PVC, and 23 is screen, and 24 is the total insulator of electric wire, and 25 is the knit nylon body.Three Audio and Video Signal Cable of 17～25 every common formation the utility model specific embodiments.
As shown in Figure 4, it is three the heart yearn numbering schematic diagram of the utility model specific embodiment.In concrete wiring, 1., 2., 3. heart yearn is peelled off to twist behind the insulator and is lumped together as a conductor, and 4., 5., 6. heart yearn is peelled off to twist behind the insulator and lumped together as a conductor.
As shown in Figure 5, it is four a section structure schematic diagram of the utility model specific embodiment.Wherein 29 is the combination of the thin copper intertwist body of multiply and several copper foil wires, and 30 is its insulator, and 28 are conduction PVC, and 27 is screen, and 26 is the total insulator of electric wire.Four Audio and Video Signal Cable of 26～30 every common formation the utility model specific embodiments.
As shown in Figure 6, it is five a section structure schematic diagram of the utility model specific embodiment.Wherein 31 is the thin copper intertwist body of multiply (totally two), and 32 is its insulator, and 33 is the total insulator of electric wire.Five Audio and Video Signal Cable of 31～33 every common formation the utility model specific embodiments.
As shown in Figure 7, thinner solid conductor 34 is formed first heart yearn (six roots of sensation altogether) with its insulator 35, and thicker solid conductor 36 is formed second heart yearn with its insulator 37, and the thin copper stranded conductor 38 of multiply is formed the 3rd heart yearn with its insulator 39; Carry out the stranded twisted wire that forms after the heart yearn that is made of the long-pending conductor of varying cross-section of different sizes, different radicals makes up mutually, twisted wire coats insulator 40 outward.Add the screen 41 back total insulators 42 of covered electric cable and knit nylon body 43 and constitute six the Audio and Video Signal Cable of the utility model embodiment by 3 such heart yearns are stranded again.
When electric wire of the present utility model is connected with connector,, can peels off the long-pending conductor of above-mentioned varying cross-section behind the insulator and twist and lump together, use as a conductor according to concrete wiring needs.
For general electric wire, its center conductor is a single conductor, and conductor too detailed rules and regulations can make electrical impedance increase; If conductor is too thick, then the signal that frequency is high is difficult for again passing through.Therefore the utility model becomes one with the thinner bundle conductor of a lot of beam ratio hairs, and low frequency is reduced to the transmission loss of high frequency; But thin cross-sectional area of conductor is long-pending less, the higher frequency difference of the signal of medium and low frequency section " circulation efficiency "; This is that speed is very fast when conducting in the metal surface because of high-frequency signals, can arrive earlier, and low-frequency signal is advanced at the conductor center, and speed can laterly relatively arrive at; Adopt thick line conductor directly to be beneficial to low frequency and pass through fast, so just can reach the phase locked purpose of low-and high-frequency segment signal.So the conductor that utilize different thicknesses, insulate separately respectively is responsible for the transmission of different frequency range signal respectively, so both can avoid kelvin effect, can reach the comprehensive requirement of frequency simultaneously again.
Above-mentioned conductor in the utility model is meant any material that can conduct electricity; What it was the most frequently used is various plain conductors, can make of any suitable metal material, for example the substrate of solid copper or multiply copper cash, metal coat, silver, aluminium, steel or other metals, metal alloy or their various combination; Conductor also can be other nonmetallic composites that can conduct electricity.
Above-mentioned insulator in the utility model claims dielectric again, is meant the suitable material that is used for cable insulation, for example materials such as the polyethylene of polyethylene, polyvinyl chloride, polypropylene, fluo-copolymer, cross coupled, rubber.Many insulating material can comprise more than one additive such as fire retardant, mould inhibitor etc.
Claims (7)
1. the audio-video signal line of a new structure, it is characterized in that: the conductor part of described audio-video signal line is to be arranged side by side by the descending conductor of cross-sectional area to constitute, and wherein each conductor insulation separately respectively, is coated within the insulating barrier after stranded.
2. the audio-video signal line of new structure according to claim 1, it is characterized in that: the cross section of described conductor is the conductor of solid circles and flat pattern.
3. the audio-video signal line of new structure according to claim 2 is characterized in that: the conductor of described solid circles and flat pattern is that the descending serial lead of cross-sectional area is formed.
4. the audio-video signal line of new structure according to claim 3, it is characterized in that: the conductive material of described solid circles and flat pattern is a yellow gold.
5. the audio-video signal line of new structure according to claim 1 is characterized in that: the conductor of small cross sectional is made up of the copper foil wire more than two in the described audio-video signal line.
6. the audio-video signal line of new structure according to claim 1 is characterized in that: the conductor of small cross sectional is made up of the enamelled wire more than two in the described audio-video signal line.
7. the audio-video signal line of new structure according to claim 1 is characterized in that: the conductor of small cross sectional is made up of the silk-covered wire more than two in the described audio-video signal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320102303 CN2650300Y (en) | 2003-10-17 | 2003-10-17 | Audio-video signal wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320102303 CN2650300Y (en) | 2003-10-17 | 2003-10-17 | Audio-video signal wire |
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| CN2650300Y true CN2650300Y (en) | 2004-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320102303 Expired - Lifetime CN2650300Y (en) | 2003-10-17 | 2003-10-17 | Audio-video signal wire |
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| CN101521057B (en) * | 2008-02-27 | 2012-07-04 | 赵明慧 | Audio transmission wire |
| US20140047713A1 (en) * | 2009-03-09 | 2014-02-20 | Nucurrent, Inc. | Method for manufacture of multi-layer wire structure for high efficiency wireless communication |
| US8928449B2 (en) | 2008-05-28 | 2015-01-06 | Flextronics Ap, Llc | AC/DC planar transformer |
| CN101901641B (en) * | 2009-05-31 | 2015-02-04 | 弗莱克斯电子有限责任公司 | Optimized stranded wire |
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