CN217008776U - Small-signal high-frequency wire for high-fidelity sound equipment - Google Patents

Abstract

The utility model discloses a small-signal high-frequency wire for high-fidelity audio, which relates to the technical field of cables. The utility model is provided with an aluminum sheath wire and a general shielding layer in sequence from the outside to the inside, wherein the general shielding layer is provided with a cross divider , the cross divider divides the cross-sectional area of the high-frequency wire into four areas, wherein four different areas are respectively provided with a wire bundle, and the wire bundle is provided with a twisted-pair protective layer, and the twisted-pair protective layer is A shielded twisted pair wire group is provided, and a high frequency cable core is arranged in the shielded twisted pair wire group. The utility model can improve the high-fidelity capability and has strong practicability.

Description

A small-signal high-frequency wire for high-fidelity audio

technical field

The utility model relates to the technical field of cables, and more particularly relates to a small-signal high-frequency wire for high-fidelity audio.

Background technique

In the field of electronic technology, high fidelity (Hi-Fi) sound can perfectly reproduce the original sound or image. The sound system can follow the original intention of the high-fidelity system, and the programs played through the high-fidelity system should be the same or basically close to the effect of the live performance. The fidelity of audio equipment, although many quantified technical indicators are specified, such as frequency response, distortion, transient response and signal-to-noise ratio, etc., in fact, they are only measurable to test the fidelity of the equipment. Indicators. By examining these indicators, you can indirectly understand how close or how different the signal played by the device is from the live performance.

In audio applications, the problem of anti-interference ability has always been a concern. In order to achieve the best signal switching separation, in addition to using a highly sealed, non-sound-dyed high-quality steel belt cable switch as the audio source switch, anti-interference ability, Communication cables with better signal-to-noise ratio, etc., the cables used in the prior art have poor anti-interference ability, which weakens the high-fidelity ability.

Utility model content

Aiming at the deficiencies of the above technologies, the utility model discloses a small-signal high-frequency wire for high-fidelity audio, which can improve the high-fidelity capability and has strong practicability.

The utility model adopts the following technical solutions:

A small-signal high-frequency wire for high-fidelity audio, wherein an aluminum sheathed wire and a general shielding layer are arranged in sequence from the outside to the inside, wherein the general shielding layer is provided with a cross divider, and the cross divider separates the high-frequency wires. The cross-sectional area is divided into four regions, wherein four different regions are respectively provided with a wire harness, the wire harness is provided with a twisted pair protection layer, and a shielded twisted pair group is arranged in the twisted pair protection layer, and the shield A high-frequency cable core is arranged in the twisted pair group.

As a further technical solution of the present invention, the cross-sectional thickness of the aluminum sheathed wire is 10mm-15mm.

As a further technical solution of the present invention, the overall shielding layer includes an inner shielding layer and an outer shielding layer, wherein the material of the inner shielding layer is metallized paper or semiconductor paper tape, the material of the outer shielding layer is copper tape, and The thickness of the total shielding layer is 5mm-10mm.

As a further technical solution of the present invention, the material of the cross separator is insulating paper, laminate, rubber, plastic, paint, glass, ceramics or mica.

As a further technical solution of the present utility model, a copper wire is arranged inside the protection layer of the twisted pair, and a plastic rubber sheath is arranged outside.

As a further technical solution of the present invention, the material of the high-frequency cable core is copper or aluminum.

As a further technical solution of the present invention, the wire information realizes data information exchange through the transmitting end and the receiving end;

The transmitter signal is controlled by the first MCU control circuit, and the input end of the first MCU control circuit is connected with an infrared remote control receiving head, an IPOD player connection port, an audio access port and an AM/FM receiving port. An output end of the MCU control circuit is connected with an FM transmitter circuit and a transmitter monitor circuit;

The signal of the receiving end is controlled by a second MCU control circuit, the input end of the second MCU control circuit is connected with an audio access terminal and an FM receiving terminal, and the output end of the second MCU control circuit is connected with a class D audio amplifier.

As a further technical solution of the present invention, the Class D audio amplifier includes an audio high-frequency amplifier circuit, and the audio high-frequency amplifier circuit includes an LC oscillator circuit.

Positive beneficial effects:

The utility model is provided with aluminum sheathed wires and a general shielding layer sequentially from outside to inside, wherein the general shielding layer is provided with a cross divider to separate different wire bundles, which can effectively improve the anti-interference ability between different wire bundles. The high-frequency cable core is arranged in the shielded twisted pair group, which can improve the data communication capability of small signals. The wire information realizes data information exchange through the transmitting end and the receiving end. The transmitting end signal is controlled by the first MCU control circuit, and the receiving end signal is controlled by the second MCU control circuit. The transmission of wires and the interaction of information improve the high-fidelity capability.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor, wherein:

1 is a cross-sectional structural schematic diagram of a small-signal high-frequency wire for high-fidelity audio of the present utility model;

2 is a schematic diagram of an application embodiment of a small-signal high-frequency wire for high-fidelity audio of the present invention;

3 is a schematic diagram of an audio high-frequency amplifying circuit in an application embodiment of a small-signal high-frequency wire for high-fidelity audio of the present invention;

Marked in the picture:

1-1-Aluminum sheathed wire; 2-Overall shielding layer; 3-Cross divider; 4-Twisted pair protection layer; 5-Unshielded twisted-pair wire group; 6-High frequency cable core.

Detailed ways

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

As shown in Figure 1, a small signal high-frequency wire for hi-fi audio, wherein an aluminum sheathed wire 1 and a general shielding layer 2 are arranged in sequence from the outside to the inside, wherein the general shielding layer 2 is provided with a cross divider 3, The cross divider 3 divides the cross-sectional area of the high-frequency wire into four regions, wherein four different regions are respectively provided with a wire bundle, and the wire bundle is provided with a twisted pair protective layer 4, and the twisted pair protective layer A shielded twisted pair group 5 is arranged inside 4 , and a high frequency cable core 6 is arranged inside the shielded twisted pair group 5 .

The utility model is provided with aluminum sheathed wires and a general shielding layer sequentially from outside to inside, wherein the general shielding layer is provided with a cross divider to separate different wire bundles, which can effectively improve the anti-interference ability between different wire bundles. The high-frequency cable core is arranged in the shielded twisted pair group, which can improve the data communication capability of small signals.

In the present invention, the thickness of the cross section of the aluminum sheathed wire 1 is 10mm-15mm.

In the present invention, the overall shielding layer 2 includes an inner shielding layer and an outer shielding layer, wherein the material of the inner shielding layer is metallized paper or semiconductor paper tape, the material of the outer shielding layer is copper tape, and the material of the outer shielding layer is copper tape. The thickness of the total shielding layer 2 is 5mm-10mm.

In the present invention, the material of the cross separator 3 is insulating paper, laminate, rubber, plastic, paint, glass, ceramics or mica.

In the present invention, the twisted-pair protective layer 4 is provided with a copper wire inside, and a plastic rubber outer skin is provided outside.

In the present invention, the material of the high-frequency cable core 6 is copper or aluminum.

In the above-mentioned embodiment, the commonly used twisted pair cable is composed of 4 pairs of twisted pairs twisted together counterclockwise at a certain density, and the outer surface of which is wrapped with a metal layer or a plastic rubber sheath. The diameter of the copper wire is o. 4mm～1mm. The twisting direction is counterclockwise, the twisting distance is 3.81cm-14cm, and the twisting length difference between adjacent twisted pairs is about 1.27cm. The twist density and twist direction of the twisted pair, as well as the insulating material, directly affect its characteristic impedance, attenuation and near-end crosstalk.

As shown in FIG. 2, the wire information realizes data information exchange through the transmitter and the receiver; wherein the transmitter signal is controlled by the first MCU control circuit, and the input end of the first MCU control circuit is connected with an infrared remote control receiver. , IPOD player connection port, audio access port and AM/FM receiving port, the output end of the first MCU control circuit is connected with a frequency modulation transmitting circuit and a transmitting end monitoring circuit; wherein the receiving end signal passes through the second MCU control circuit The input end of the second MCU control circuit is connected with an audio access terminal and an FM receiving terminal, and the output end of the second MCU control circuit is connected with a class D audio amplifier.

In the utility model, the wire information realizes data information exchange through the transmitting end and the receiving end, the transmitting end signal is controlled by the first MCU control circuit, the receiving end signal is controlled by the second MCU control circuit, and high fidelity is realized by isolating the signals. The transmission and information interaction of small-signal high-frequency wires for audio improves the high-fidelity capability.

As shown in FIG. 3 , the class D audio amplifier includes an audio high-frequency amplifier circuit, and the audio high-frequency amplifier circuit includes an LC oscillator circuit. In this circuit, the information at the input end resonates through the LC oscillator circuit, and the resonated circuit amplifies the information through the transistor amplifier, which can improve the small-signal amplifying capability.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these specific embodiments are only examples, and those skilled in the art can Various omissions, substitutions and changes may be made to the details of the methods and systems described above. For example, it is within the scope of the present invention to combine the above-described method steps to perform substantially the same functions in substantially the same way to achieve substantially the same results. Accordingly, the scope of the present invention is to be limited only by the appended claims.

Claims (7)

1. The utility model provides a high-fidelity is small-signal high frequency electric wire for stereo set which characterized in that: the shielding structure comprises an aluminum covered wire (1) and a total shielding layer (2) which are sequentially arranged from outside to inside, wherein the total shielding layer (2) is provided with a cross separation frame (3), the cross separation frame (3) divides the cross section area of a high-frequency wire into four areas, a strand is respectively arranged in four different areas, the strand is provided with a twisted pair protection layer (4), a shielding twisted pair group (5) is arranged in the twisted pair protection layer (4), a high-frequency cable core (6) is arranged in the shielding twisted pair group (5), and the cross section thickness of the aluminum covered wire (1) is 10-15 mm.

2. A small signal high frequency electric wire for hi-fi audio according to claim 1, characterized in that: the total shielding layer (2) comprises an inner shielding layer and an outer shielding layer, wherein the inner shielding layer is made of metallized paper or a semiconductor paper tape, the outer shielding layer is made of a copper strip, and the thickness of the total shielding layer (2) is 5mm-10 mm.

3. A small signal high frequency electric wire for hi-fi audio according to claim 1, characterized in that: the cross-shaped separation frame (3) is made of insulating paper, laminated boards, rubber, plastics, paint, glass, ceramics or mica.

4. A small signal high frequency electric wire for hi-fi audio according to claim 1, characterized in that: and a copper conductor is arranged in the twisted pair protection layer (4), and a plastic rubber sheath is arranged outside the twisted pair protection layer.

5. A small signal high frequency electric wire for hi-fi audio according to claim 1, characterized in that: the high-frequency cable core (6) is made of copper or aluminum.

6. A small signal high frequency electric wire for high fidelity audio according to any of claims 1 to 5, characterized in that: the high-frequency wire information realizes data information interaction through a transmitting end and a receiving end;

the signal of the transmitting end is controlled by a first MCU control circuit, the input end of the first MCU control circuit is connected with an infrared remote control receiving head, an IPOD player connecting port, an audio frequency access port and an AM/FM receiving port, and the output end of the first MCU control circuit is connected with a frequency modulation transmitting circuit and a transmitting end monitoring circuit;

the receiving end signal is controlled by a second MCU control circuit, the input end of the second MCU control circuit is connected with an audio access terminal and an FM receiving terminal, and the output end of the second MCU control circuit is connected with a class D audio amplifier.

7. A small signal high frequency electric wire for high fidelity audio according to claim 6, characterized in that: the D-class audio amplifier comprises a sound high-frequency amplifying circuit, and the sound high-frequency amplifying circuit comprises an LC oscillating circuit.

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