CN210073379U

CN210073379U - Multi-shield structure balance audio cable

Info

Publication number: CN210073379U
Application number: CN201920668561.7U
Authority: CN
Inventors: 陈斌
Original assignee: NINGBO LITENG AUDIO TECHNOLOGY Co Ltd
Current assignee: NINGBO LITENG AUDIO TECHNOLOGY Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-02-14
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses a shielding balanced audio cable of structure more belongs to pencil technical field. The method comprises the following steps: the novel cable comprises a plurality of conductors, an inner sheath, a semiconductor layer, a plurality of copper wire layers and an outer sheath, wherein the conductors are wound in a pairwise mode, the outer side of each conductor is coated with an insulating layer, the outer side of each conductor is coated with the inner sheath, the outer side of the inner sheath is provided with the semiconductor layer, the outer side of the semiconductor layer is coated with the copper wire layers, and the outer side of the copper wire layers is provided with the outer sheath. The utility model provides a pair of shielding balanced audio cable of structure more, guaranteed the compliance of cable, stable in structure, and be fit for removing the installation, and shielding ability is strong.

Description

Multi-shield structure balance audio cable

Technical Field

The utility model relates to a pencil technical field specifically relates to a shielding balanced audio cable of structure more.

Background

A microphone is called a microphone, and is an energy conversion device that converts a sound signal into an electric signal. Microphones were developed from the initial conversion of acoustoelectric by resistive to inductive, capacitive conversion, and a number of new microphone technologies were developed, including aluminum strip, moving coil, etc., as well as condenser and electret microphones, which are currently widely used. Most microphones need to be connected by audio cables, and the audio cables are mainly divided into two types, namely balanced type (double-core outer shielding) and unbalanced type (single-core outer shielding). The former is used for long-distance transmission, and the latter is used for short-distance transmission within 5-10 meters. The audio cable can usually transmit several hundred meters away, the microphone input is 1 millivolt (0.001V) electrical signal, the microphone impedance is about 600 ohms, the microphone is an energy provider, because the working voltage is very weak, the wire needs to use two methods to deal with the problem of interference, and most of the audio cables on the market have poor shielding capability.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that exists among the prior art, aim at providing a balanced audio cable of many shielding structures, shielding ability is strong, and conductor structure is stable, and is fit for removing the installation.

The specific technical scheme is as follows:

the utility model provides an in shielding balanced audio cable of structure more, includes a plurality of conductors, the inner sheath, semiconductor layer, a plurality of copper wire layers and oversheath, two liang of pair twist winding of a plurality of conductors, and the outside cladding of each conductor has the insulating layer, and the outside cladding of a plurality of conductors has the inner sheath, and the outside of inner sheath is provided with semiconductor layer, and the outside cladding of semiconductor layer has a plurality of copper wire layers, and the outside on a plurality of copper wire layers is provided with the oversheath.

Among the foretell balanced audio cable of shielding structure more, still have such characteristic, insulating layer and inner sheath adopt the pe material.

In the balanced audio cable with the multi-shielding structure, the conductor is a plurality of strands of oxygen-free copper wires.

In foretell many shielding structure balance audio cable, still have such characteristic, the copper wire layer is two-layer, and each copper wire layer is formed by a plurality of copper wires along a direction winding, and the copper wire winding direction on two copper wire layers is opposite.

In the balanced audio cable of a many shielding structures of foretell, still have such characteristic, the oversheath adopts pvc material.

In the balanced audio cable with the multi-shielding structure, the two conductors are twisted in pairs, and the twisting pitches are the same.

The positive effects of the technical scheme are as follows:

the utility model provides a pair of shielding balanced audio cable of structure more, the outside cladding of each conductor has the insulating layer, and the structure is ensured through the inner sheath in the outside of a plurality of conductors and the lay length is stable, and semiconductor layer and a plurality of copper wire layer strengthen the shielding ability of cable, adopt super gentle PVC's oversheath and stranded anaerobic copper wire to guarantee the compliance of cable to the adaptation removes the installation.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the balanced audio cable with multiple shielding structures according to the present invention.

In the drawings: 1. a conductor; 2. an insulating layer; 3. an inner sheath; 4. a semiconductor layer; 5. a first copper wire layer; 6. a second copper wire layer; 7. an outer sheath.

Detailed Description

In order to make the utility model discloses technical means, creation characteristic, achievement purpose and efficiency that realize are easily understood and are known, and following embodiment combines the attached drawing 1 right the utility model provides a pair of shielding structure balance audio cable more do specifically expounds.

Fig. 1 is the utility model discloses a shielding structure balance audio cable's of shielding structure's structural schematic diagram more, in this embodiment, this shielding structure balance audio cable more mainly includes conductor 1, insulating layer 2, inner sheath 3, semiconductor layer 4, copper wire layer one 5, copper wire layer two 6, oversheath 7.

In a balanced audio cable with a multi-shielding structure, a plurality of conductors 1 are twisted in pairs, an insulating layer 2 is coated on the outer side of each conductor 1, the insulating layer 2 is convenient for the conductors 1 to bend, meanwhile, the radiation to the surroundings during information transmission can be avoided, the external electromagnetic interference can be resisted, the confidentiality and the stability in the information transmission process can be ensured, an inner sheath 3 is coated on the outer side of each conductor 1, the inner sheath 3 can ensure the structural stability of the conductors 1 and ensure the twisting distance of the two conductors 1, a semiconductor layer 4 is arranged on the outer side of the inner sheath 3, the semiconductor layer 4 is fixedly connected with the inner sheath 3, the semiconductor layer 4 is used for enhancing the shielding of signals, a plurality of copper wire layers are coated on the outer side of the semiconductor layer 4, the copper wire layers comprise a first copper wire layer 5 and a second copper wire layer 6, a plurality of copper wire layers are used for enhancing the shielding effect, the interference of the external environment is prevented, the outer sheath 7 can ensure the flexibility of the cable, and has the advantages of wear resistance, acid and alkali resistance, oil resistance, environmental protection and prolonged service life of the cable.

In a preferred embodiment, as shown in fig. 1, the insulation layer 2 and the inner sheath 3 are made of pe. PE is a typical thermoplastic, and has excellent chemical stability and excellent dielectric properties, ensuring that the conductor 1 can be bent and preventing interference between wires.

In a preferred embodiment, as shown in fig. 1, the conductor 1 is a multi-strand oxygen-free copper wire. The oxygen-free copper wire is generally used for transmitting video and audio monitoring and network transmission (monitoring video wires, wired radio frequency wires, hundred-megabyte ultra-five-class network wires and kilomega six-class wires). Because the oxygen-free copper wire is a copper wire manufactured under the condition of no oxygen, the oxygen-free copper wire is mainly used for preventing the future occurrence of the verdigris (oxidation). So oxygen-free copper: the resistivity is about 0.0165; low-oxygen copper: the resistivity is about 0.0168; and (3) copper regeneration: the resistivity is more than 0.0185. The oxygen-free copper has good transmission effect and good interference resistance. The transmission performance of the cable can be improved, and the anti-interference capability is improved.

In a preferred embodiment, as shown in fig. 1, the copper wire layer is two layers, including a first copper wire layer 5 and a second copper wire layer 6, and each copper wire layer is formed by winding a plurality of copper wires in one direction, and the winding directions of the copper wires of the first copper wire layer 5 and the second copper wire layer 6 are opposite. The anti-interference capability of the cable is enhanced, and the shielding effect is improved.

In a preferred embodiment, as shown in fig. 1, the outer sheath 7 is made of pvc. The PVC material has good flame retardance and good electrical insulation performance, can be used as a low-frequency insulation material, and has good chemical stability.

In a preferred embodiment, as shown in fig. 1, two conductors 1 are provided, and the two conductors 1 are twisted in pairs and have the same pitch.

In the following description, a specific embodiment is described, and it should be noted that the structures, processes and materials described in the following embodiment are only used to illustrate the feasibility of the embodiment, and are not intended to limit the scope of the present invention.

This many screens cover balanced audio cable of structure, this cable contain two conductors, two liang of pair twists of two conductors, and the outside cladding of each conductor has the insulating layer, and two conductors carry out the cladding and the structure is fixed through the inner sheath, and the outside of inner sheath is provided with a semiconductor layer, and the outside of semiconductor layer is provided with two copper wire layers to the shielding effect of reinforcing cable, the compliance of cable can be guaranteed to the oversheath of PVC material, with the removal installation that adapts to the cable.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims

1. A multi-shield structure balanced audio cable, comprising: the novel cable comprises a plurality of conductors, an inner sheath, a semiconductor layer, a plurality of copper wire layers and an outer sheath, wherein the conductors are wound in pairs, each conductor is coated with an insulating layer and a plurality of conductors, the outer side of each conductor is coated with the inner sheath, the outer side of each inner sheath is provided with the semiconductor layer, the outer side of each semiconductor layer is coated with the copper wire layers and the outer sheath.

2. A multi-shielding structure balanced audio cable according to claim 1, wherein the insulating layer and the inner sheath are made of pe.

3. A multi-shielded structural balanced audio cable according to claim 1, wherein the conductor is a plurality of strands of oxygen-free copper wire.

4. A multi-shielding structure balanced audio cable according to claim 1, wherein the copper wire layers are two layers, each copper wire layer is formed by winding a plurality of copper wires along one direction, and the winding directions of the copper wires of the two copper wire layers are opposite.

5. A multi-shielded structure balanced audio cable according to claim 1, wherein the outer sheath is made of pvc.

6. A multi-shielded structure balanced audio cable according to claim 1, wherein there are two conductors, and the two conductors are twisted with the same twist pitch.