CN201489893U

CN201489893U - Audio-frequency cable unit

Info

Publication number: CN201489893U
Application number: CN200920155209XU
Authority: CN
Inventors: 吴基良
Original assignee: Haoliang Co Ltd
Current assignee: Haoliang Co Ltd
Priority date: 2009-05-26
Filing date: 2009-05-26
Publication date: 2010-05-26
Anticipated expiration: 2019-05-26

Abstract

An audio-frequency cable unit comprises two audio-frequency cables and outer insulating skins, wherein the two audio-frequency cables lean against each other side by side, and the outer insulating skins surround outside the audio-frequency cables; each audio-frequency cable is provided with a first metal wire core, two insulation wire core and an inner insulating skin, wherein the two insulation wire cores lean against each other side by side and together lean beside the first metal wire core, and the inner insulating skin takes the shape of a round tube. The inner insulating skin surrounds outside the first metal wire core and the insulation wire in a tight fit manner; a plurality of insulating heat radiation spaces are defined among the inner insulating skin, the first metal wire core and the insulation wire; and by taking the advantages of air inside the insulating heat radiation spaces, not only can an insulating effect is achieved, but also heat energy emitted during audio-frequency signal dissipation and transmission process can be absorbed, and the distortion degree of the audio-frequency signals is reduced.

Description

The voice-frequency cable unit

[technical field]

The utility model relates to a kind of voice-frequency cable unit, particularly relates to a kind of voice-frequency cable unit that is used for the transmission of audio signal.

[background technology]

General audio-frequency electric cable is to be used to connect between audifier and loudspeaker; source of sound is between amplifier or be connected between the various level amplifier; to transmit the processing audio signal; and be to become with several metal core mutual group in the general audio-frequency electric cable; and between the metal core in the mode of coated insulation skin and plug mode in the insulation material; so that different metal core mutually insulated; and because the audio-frequency electric cable is when the transmission of audio signal; regular meeting produces the phenomenon of heat energy and temperature rising; and the heat that produces in the above-mentioned use just must shed via above-mentioned insulation material and insulated hull; and the quality of above-mentioned radiating effect has influence on the distortion level in the audio signal transmission course; also directly influence the audio frequency output quality, so the quality of above-mentioned insulation material and audio-frequency electric cable transmission of audio signal is closely bound up.

[utility model content]

The purpose of this utility model is to provide a kind of radiating effect that can improve to reduce the voice-frequency cable unit of audio signal distortion level.

The utility model voice-frequency cable unit comprises: two mutually and the audio frequency cable that leans on, and the external insulation skin of a corral outside described audio frequency cable, it is characterized in that: each audio frequency cable comprises: one first metal core, at least two mutually and by and common and be against the other insulated wire cores of the first metal core, and the cylindrical and interior insulated hull of corral outside the first metal core and insulated wire cores tightly, and define several insulating radiation spaces between interior insulated hull, the first metal core and described insulated wire cores.

The beneficial effects of the utility model are: by the mutual of these metal cores and insulated wire cores and by arranging, and and define several insulating radiation spaces in this between insulated hull, utilize the air in the insulating radiation space, do not reach the effect of insulation only, can absorb again with dissipation transmission of audio signal process in the heat energy that distributed, reduce the distortion level of audio signal.

[description of drawings]

Fig. 1 is the three-dimensional cutaway view of first preferred embodiment of the utility model voice-frequency cable unit;

Fig. 2 is the cutaway view of this preferred embodiment, so that the structure of several audio frequency cables to be described;

Fig. 3 is the three-dimensional cutaway view of second preferred embodiment of the utility model voice-frequency cable unit;

Fig. 4 is the cutaway view of this preferred embodiment, so that the structure of several audio frequency cables to be described; And

Fig. 5 is the cutaway view of the 3rd preferred embodiment of the utility model voice-frequency cable unit.

[embodiment]

Below in conjunction with drawings and Examples the utility model is elaborated:

Consult Fig. 1 and Fig. 2, first preferred embodiment of the utility model voice-frequency cable unit comprises: two mutually and the audio frequency cable 3 that leans on, a ground unit 4, a corral in these audio frequency cables 3 and the outer external insulation skin 5 of ground unit 4, and most external insulation skin 5 of being filled in is interior and be positioned at the insulation filler 6 of 3 of audio frequency cables.

Each audio frequency cable 3 has: one first metal core 31, two mutually and by and common and be against the other insulated wire cores 34 of the first metal core 31, an and cylindrical interior insulated hull 35.This first metal core 31 is close with the external diameter of insulated wire cores 34 in the present embodiment.Should in insulated hull 35 corral is outside the first metal core 31 and insulated wire cores 34 tightly, and interior insulated hull 35, the

first metal core

31 and 34 of these insulated wire cores define several insulating radiation spaces 36.Just utilize and enclose the boundary between the first metal core, 31 outer peripheral faces, insulated wire cores 34 outer peripheral faces and interior insulated hull 35 inner peripheral surfaces and go out the insulating radiation space 36 that these are full of air, do not reach the effect of insulation only, can absorb again with the dissipation first metal core 31 transmission of audio signal processes in the heat energy that distributed, reduce the distortion level of audio signal.

This ground unit 4 has a ground connection core 41 that is arranged in the external insulation skin 5, and a metal forming 42 that is coated on external insulation skin 5 inner peripheral surfaces.This metal forming 42 is aluminium foils in the present embodiment.Cooperate the audio signal transmission that can prevent in extraneous static or the noise interference tones cable 3 with metal forming 42 by ground connection core 41.

This external insulation skin 5 is plastic cement protective layers in the present embodiment, and is to make with polyvinyl chloride, but practical range do not exceed in addition by the material and the form of insulated hull 5.And in actual use, can be outside external insulation skin 5 suit one deck nylon mesh grid to reach the effect of shock-absorbing and protection.In addition, in the present embodiment, this insulation filler 6 is staple or cotton thread.

Whereby, when this creation voice-frequency cable unit is actually used in the transmission of audio signal, this audio signal transmits via the first metal core 31 in these audio frequency cables 3, and the heat that the transmittance process first metal core 31 produces can absorb via the air in the insulating radiation space 36 and discharge outward, causes audio signal distortion or decay to avoid high temperature.

In addition, because 31 of the first metal cores of these audio frequency cables 3 are mingled with the insulating radiation space 36 and insulation filler 6 that is full of air, can significantly reduce the capacitance of 31 of these first metal cores, so that the Distance Transmission audio signal can be grown in this creation voice-frequency cable unit is also undistorted.

Consult Fig. 3 and Fig. 4, the structure of second preferred embodiment of the utility model voice-frequency cable unit is roughly identical with first embodiment, its difference is in each audio frequency cable 3 and also comprises one second metal core 32 and one the 3rd metal core 33, and the quantity of these insulated wire cores 34 is four.

These insulated wire cores 34 and the first metal core 31, the second metal core 32, the 3rd metal core 33 mutually and lean on, this first metal core 31, the second metal core 32, the 3rd metal core 33 is with the equal angles interval mode and be against interior week of insulated hull 35 in this, and wherein an insulated wire cores 34 is positioned at the shaft core position of this insulated hull 35, its excess-three insulated wire cores 34 equal angles compartment of terrain respectively is posted by around the insulated wire cores 34 of shaft core position, just its excess-three insulated wire cores 34 and this first metal core 31, the second metal core 32, the 3rd metal core 33 is arranged in around the insulated wire cores 34 of shaft core position interlacedly, and these insulating radiation spaces 36 are by interior insulated hull 35, the first metal core 31, the

second metal core

32,34 of the 3rd metal core 33 and these insulated wire cores define jointly and form, the also air in the insulating radiation space 36 and absorb and discharge outward the first metal core 31, the second metal core 32, the heat that the 3rd metal core 33 produces causes audio signal distortion or decay to avoid high temperature.This first metal core 31, the second metal core 32, the 3rd metal core 33 are to be respectively applied for transmission low frequency message, intermediate frequency message and high frequency message in the present embodiment, and with lifting audio transmission effect, but practical range does not exceed with above-mentioned transmission means.

Consult Fig. 5, the structure of the 3rd preferred embodiment of the utility model voice-frequency cable unit is roughly identical with second embodiment, but because present embodiment mainly is to be suitable for to be electrically connected between amplifier and output loudspeaker, so be in different with second embodiment is not provided with this ground connection core 41 (being found in Fig. 1～4) in the voice-frequency cable unit, and the quantity of these audio frequency cables 3 is paired even number, present embodiment is to be that example is done explanation with two pairs, the first metal core 31 of each audio frequency cable 3 and the second metal core 32 are by several heart yearn bars 311 in addition, 321 turn round volume forms, be to belong to split conductor bar kenel, wherein the heart yearn bar 311 of the first metal core 31 is thinner, the heart yearn bar 321 of the second metal core 32 is thicker, the heart yearn bar 311 that differs by thickness, the 321 first metal core 31 and the second metal cores of forming 32, to transmit low frequency message and intermediate frequency message respectively, it is low to reach the reduction transmission, the temperature rise phenomenon and the phase difference that cause during intermediate frequency message, reduce the distortion level of audio signal, promote the audio transmission effect.

Take a broad view of above-mentioned, the utility model voice-frequency cable unit is by the mutual of this first metal core 31, the second metal core 32, the 3rd metal core 33 and insulated wire cores 34 and by arranging, and and in this 35 of insulated hulls define several insulating radiation spaces 36, utilize the air in the insulating radiation space 36, do not reach the effect of insulation only, can promote the radiating effect in the transmission of audio signal process again, reduce the distortion level of audio signal, so can reach the purpose of this utility model really.

Claims

1. voice-frequency cable unit, comprise: two mutual and lean on audio frequency cables, and the external insulation skin of one deck corral outside described audio frequency cable, it is characterized in that: each audio frequency cable comprises: one first metal core, at least two mutually and by and common and be against the other insulated wire cores of the first metal core, and one deck is cylindrical and the interior insulated hull of corral outside the first metal core and insulated wire cores tightly, and define several insulating radiation spaces between interior insulated hull, the first metal core and described insulated wire cores.

2. voice-frequency cable as claimed in claim 1 unit, it is characterized in that: each audio frequency cable also has one second metal core and one article of the 3rd metal core, the quantity of described insulated wire cores is four, described insulated wire cores is arranged at respectively between this first, second, third metal core, and described insulating radiation space is to form by defining jointly between interior insulated hull, first, second, third metal core and described insulated wire cores.

3. voice-frequency cable as claimed in claim 2 unit, it is characterized in that: this first, second, third metal core is with the equal angles interval mode and be against interior week of insulated hull in this, and wherein an insulated wire cores is positioned at the shaft core position of this insulated hull, and its excess-three insulated wire cores equal angles compartment of terrain respectively is posted by around the insulated wire cores of shaft core position.

4. voice-frequency cable as claimed in claim 1 unit is characterized in that: the voice-frequency cable unit also comprises a ground unit, and this ground unit has a ground connection core that is arranged at the external insulation intracutaneous.

5. voice-frequency cable as claimed in claim 4 unit is characterized in that: this ground unit also has one deck and is coated in metal forming on the external insulation intracutaneous side face.

6. as each described voice-frequency cable unit in the claim 1 to 5, it is characterized in that: the voice-frequency cable unit also comprises several and is filled in the external insulation intracutaneous, and is positioned at the insulation filler between the audio frequency cable.

7. voice-frequency cable as claimed in claim 2 unit is characterized in that: each the first metal core and the second metal core are made up of several heart yearn bars respectively.

8. voice-frequency cable as claimed in claim 7 unit is characterized in that: the heart yearn bar of this first metal core is thin than the heart yearn bar of the second metal core.