CN103247367A - Audio transmission cable capable of preventing external electromagnetic wave interference - Google Patents
Audio transmission cable capable of preventing external electromagnetic wave interference Download PDFInfo
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- CN103247367A CN103247367A CN 201310171096 CN201310171096A CN103247367A CN 103247367 A CN103247367 A CN 103247367A CN 201310171096 CN201310171096 CN 201310171096 CN 201310171096 A CN201310171096 A CN 201310171096A CN 103247367 A CN103247367 A CN 103247367A
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Abstract
An audio transmission cable capable of preventing external electromagnetic wave interference belongs to the technical field of cables and is formed in a way that a polyvinyl chloride outer sheath is extruded on a cable core formed by two audio lines, wherein each audio line is formed in a way that a polyvinyl insulating layer, an aluminium foil wrapping layer, a metal wire braid layer and a polyvinyl chloride inner sheath are sequentially arranged on a copper wire conductor, the polyvinyl insulating layer is extruded at circumference of the copper wire conductor, the aluminium foil wrapping layer is wrapped on the polyvinyl insulating layer in a weaving manner firstly, then the metal wire braid layer is wrapped on the aluminium foil wrapping layer in the weaving manner, and finally the polyvinyl chloride inner sheath is extruded on the metal wire braid layer. According to the invention, the structure of the audio line adopting a bare copper wire and the other audio line adopting a tin plated copper is adopted, the positive pole and the negative pole are easy to distinguish, so as to avoid error connection; and both the audio lines take polyvinyl as insulating materials, and the aluminium foil wrapping layer and the metal wire braid layer as a mixed shielding layer, so as to prevent external electromagnetic wave interference. Therefore, the cable has the advantages of good shielding effect, good mechanical property and bendability, and long service life.
Description
Technical field
The present invention relates to a kind of cable, particularly a kind of structure of audio amplifier cable belongs to the cable technology field.
Background technology
Existing broadcast audio transmission cable, shielding properties, flexibility are poor, and not antitorque, intensity is low, tension not, cable and equipment are not complementary, the audio data transmission dtr signal, useful life is shorter, can not satisfy instructions for use.Signal transmission between the digital device in the stereo set system must be used cable interconnection, no matter be any standard, use the system equipment of what form, used cable is most important, sometimes the AC characteristic of having ignored cable in a certain link, do not select the voice-frequency cable that rationally reaches the AC characteristic coupling for use, just can not reach best technical characteristic effect, can produce inconceivable adverse consequences.In order accurately to transmit signal, cable must be complementary with transmitting and receiving device.The digital electric signal frequency is very high, and the kelvin effect of electric current on lead can be darker during the characteristic impedance coupling, and more dark laser propagation effect is more good.The collection skin can be more not shallow when matching, and laser propagation effect is also just more poor, and this is because big multiple current formation reflection in cable can produce standing wave and the consumption signal energy, makes the distortion of digital pulse signal waveform generation.Because distributed capacitance, distributed inductance, resistance when cable resistance does not match in the cable can both directly influence the frequency response in the signal, influence rising edge and the trailing edge time of pulse, at the transmission receiving terminal, error code can appear during to the deciphering of digital signal, if the skew of the front and back on rising edge of a pulse time and the trailing edge time of occurrence, can cause the shake time long and reduced the quality of audio frequency, even can produce noise and make the tonequality deterioration.
Summary of the invention
Purpose of the present invention is exactly at the deficiencies in the prior art, for satisfying the demand in market, provides a kind of audio frequency transmission cable of anti-external electromagnetic wave interference.
The object of the present invention is achieved like this, the audio frequency transmission cable of anti-external electromagnetic wave interference, it is characterized in that, formed by two tone frequency channel wires and to extrude the polyvinyl chloride oversheath on the cable core and constitute, described tone frequency channel wire is by setting gradually polyethylene layer on the copper wire conductor, the aluminium foil lapping layer, wire braid, the polyvinyl chloride inner sheath constitutes, polyethylene layer is extruded in the periphery of copper wire conductor, the wrapped aluminium foil lapping layer of elder generation on polyethylene layer, knit wire braid on the aluminium foil lapping layer again, extrude the polyvinyl chloride inner sheath at wire braid, described copper wire radical is 2 * 24, and filament diameter is 0.1 ㎜, and the outside diameter of cable is 6.3 ㎜.
Be provided with insulation filler in the described cable core.
Described copper wire conductor is bare copper wire and tinned copper wire, and bare copper wire conductor and tinned copper wire conductor structure are measure-alike.
The present invention is rational in infrastructure, adopts bare copper wire tone frequency channel wire and tinned copper wire tone frequency channel wire structure, distinguishes both positive and negative polarity easily, can not cause wrong.Adopt the copper wire conductor, reduce decay, improve the cable frequency of utilization, enlarge the scope of application.Bare copper wire tone frequency channel wire and tinned copper wire tone frequency channel wire all adopt polyethylene to do the insulation material, and density is little, dielectric loss angle is little, superior performance, and the audio data transmission signal quality is good.Bare copper wire tone frequency channel wire and tinned copper wire tone frequency channel wire all adopt the mixing screen of aluminium foil lapping layer and wire braid, anti-external electromagnetic wave interference, and cable shield is effective, mechanical performance, good bending property, long service life.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1 conductor, 2 insulating barriers, 3 aluminium foil lapping layers, 4 wire braids, 5 inner sheaths, 6 oversheaths.
Embodiment
The audio frequency transmission cable of anti-external electromagnetic wave interference, the audio frequency transmission cable of anti-external electromagnetic wave interference, formed by two tone frequency channel wires and to extrude the polyvinyl chloride oversheath on the cable core and constitute, tone frequency channel wire is by setting gradually polyethylene layer on the copper wire conductor, the aluminium foil lapping layer, wire braid, the polyvinyl chloride inner sheath constitutes, polyethylene layer is extruded in the periphery of copper wire conductor, the wrapped aluminium foil lapping layer of elder generation on polyethylene layer, knit wire braid on the aluminium foil lapping layer again, extrude the polyvinyl chloride inner sheath at wire braid, described copper wire radical is 2 * 24, filament diameter is 0.1 ㎜, and the outside diameter of cable is 6.3 ㎜.Be provided with insulation filler in the cable core.The copper wire conductor is bare copper wire and tinned copper wire, and bare copper wire conductor and tinned copper wire conductor structure are measure-alike.
The audio frequency transmission cable of anti-external electromagnetic wave interference adopts bare copper wire and tinned copper wire structure, distinguishes both positive and negative polarity easily, can not cause wrong.Adopt the copper wire conductor, reduce decay, improve the cable frequency of utilization, enlarge the scope of application.Bare copper wire tone frequency channel wire and tinned copper wire tone frequency channel wire all adopt polyethylene to do the insulation material, and density is little, dielectric loss angle is little, superior performance, and the audio data transmission signal quality is good.Bare copper wire tone frequency channel wire and tinned copper wire tone frequency channel wire all adopt and all adopt the braided metal screen, and the cable shield effect is strong, mechanical performance, good bending property, and long service life is met the need of market.
Claims (3)
1. prevent the audio frequency transmission cable of external electromagnetic wave interference, it is characterized in that, formed by two tone frequency channel wires and to extrude the polyvinyl chloride oversheath on the cable core and constitute, described tone frequency channel wire is by setting gradually polyethylene layer on the copper wire conductor, the aluminium foil lapping layer, wire braid, the polyvinyl chloride inner sheath constitutes, polyethylene layer is extruded in the periphery of copper wire conductor, the wrapped aluminium foil lapping layer of elder generation on polyethylene layer, knit wire braid on the aluminium foil lapping layer again, extrude the polyvinyl chloride inner sheath at wire braid, described copper wire radical is 2 * 24, filament diameter is 0.1 ㎜, and the outside diameter of cable is 6.3 ㎜.
2. the audio frequency transmission cable of anti-external electromagnetic wave interference according to claim 1 is characterized in that, is provided with insulation filler in the described cable core.
3. the audio frequency transmission cable of anti-external electromagnetic wave interference according to claim 1 is characterized in that, described copper wire conductor is bare copper wire and tinned copper wire, and bare copper wire conductor and tinned copper wire conductor structure are measure-alike.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310171096 CN103247367A (en) | 2013-05-10 | 2013-05-10 | Audio transmission cable capable of preventing external electromagnetic wave interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310171096 CN103247367A (en) | 2013-05-10 | 2013-05-10 | Audio transmission cable capable of preventing external electromagnetic wave interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103247367A true CN103247367A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310171096 Pending CN103247367A (en) | 2013-05-10 | 2013-05-10 | Audio transmission cable capable of preventing external electromagnetic wave interference |
Country Status (1)
| Country | Link |
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| CN (1) | CN103247367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390200A (en) * | 2015-12-10 | 2016-03-09 | 泰丰线缆集团有限公司 | Flexible fireproof cable and preparation method therefor |
| CN106782807A (en) * | 2017-03-02 | 2017-05-31 | 东莞福川电线电缆科技有限公司 | A kind of shielding practicality earphone cord high |
-
2013
- 2013-05-10 CN CN 201310171096 patent/CN103247367A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390200A (en) * | 2015-12-10 | 2016-03-09 | 泰丰线缆集团有限公司 | Flexible fireproof cable and preparation method therefor |
| CN106782807A (en) * | 2017-03-02 | 2017-05-31 | 东莞福川电线电缆科技有限公司 | A kind of shielding practicality earphone cord high |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |