CN201170971Y - Audio transmission line - Google Patents
Audio transmission line Download PDFInfo
- Publication number
- CN201170971Y CN201170971Y CNU2008200031917U CN200820003191U CN201170971Y CN 201170971 Y CN201170971 Y CN 201170971Y CN U2008200031917 U CNU2008200031917 U CN U2008200031917U CN 200820003191 U CN200820003191 U CN 200820003191U CN 201170971 Y CN201170971 Y CN 201170971Y
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- CN
- China
- Prior art keywords
- opening
- transmission line
- flat part
- frequency signal
- audio transmission
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Abstract
The utility model relates to an audio frequency transmission line, comprising: an input terminal, at least one flat table part and an output terminal which are sequentially connected with each other; wherein, a central conductor in the flat table part is respectively provided with an opening at both rims which are opposite; the openings of both rims are arranged crossways; the length of the opening is gradually increased in sequence from one side of the input terminal connected with the flat table part to one side of the output terminal connected with the flat table part. The opening arranged at the center of the conductor ensures that the length of the medium-high frequency signal transmission line in the conductor is larger than that of the low frequency signal transmission line in the conductor, thus balancing the transmission speed of the high frequency signal and the low frequency signal; the length of the opening sequentially increased recovers the transmission speed of the audio frequency signal, thus improving the tone of vocal reproduction.
Description
Technical field
The utility model relates to the utility model and relates to musical instruments, relates in particular to a kind of audio transmission line.
Background technology
The cable of the transmitting audio signal that uses in the music playback device, people generally are referred to as audio transmission line, it is a cylinder, integral body linearly, as shown in Figure 1.The core of audio transmission line is a conductor 1, be used for transmitting audio signal, the conductor 1 outside insulator 2 that covers, as plastics or rubber, outside the insulator 2 is the screen 3 that is made of conductor, this screen 3 is used for isolated extraneous interference on the one hand, and the ground wire that is used to constitute audio signal on the other hand is the loop; Be insulation sheath 4 outside the insulating barrier 3, be used for inner each layer of protection, make audio transmission line wear-resistant, to increase the service life.
The defective that existing audio transmission line exists is, because there be " skin effect " or " kelvin effect " in conductor, when the audio signal of audio transmission line carry high frequency section, electric charge is to the surface aggregation of conductor, and therefore, the signal of high band transmits by surface of conductors substantially, low frequency signal is then by the conductor intermediate conveyor, cause the transmission of high-frequency signal and low frequency signal unbalanced, the sound that audio signal is reproduced causes harmful effect, has reduced the tonequality of reproducing sound.
The utility model content
The purpose of this utility model is to propose a kind of audio transmission line, to guarantee the transmission equilibrium of high-frequency signal and low frequency signal.
For achieving the above object, the utility model provides a kind of audio transmission line, comprising: an input of Lian Jieing, at least one flat part and an output successively; Be provided with opening on the center conductor two opposite edges of described flat part inside, opening on described two limits is arranged in a crossed manner, and the length of described opening increases progressively to the side that described flat part links to each other with described output successively from the side that described flat part links to each other with described input.
This programme is by the opening of center conductor, the line length that the line length that makes center conductor medium-high frequency signal transmit is transmitted greater than center conductor medium and low frequency signal, thereby balance the transmission speed of high-frequency signal and low frequency signal, and by increasing opening length successively, recover transmission of audio signals speed, thereby improved the tonequality of reproducing sound.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of prior art sound intermediate frequency transmission line;
Fig. 2 is the schematic diagram of the utility model audio transmission line embodiment;
Fig. 3 is the upward view of Fig. 2;
Fig. 4 is the schematic diagram of the utility model audio transmission line embodiment middle plateform portion inside center conductor;
Fig. 5 is the schematic cross-section of the utility model audio transmission line embodiment middle plateform portion.
Embodiment
Audio transmission line can be by partly or entirely being set to be in one or more square portion in the plane with center conductor, make the top layer length of conductor greater than the centerline length of center conductor, thereby guarantee high-frequency signal and low frequency signal transmission balance, improve the tonequality that audio signal is reproduced sound.
Fig. 2 is the schematic diagram of the utility model audio transmission line embodiment, and Fig. 3 is the upward view of Fig. 2, and shown in Fig. 2,3, in the present embodiment, audio transmission line comprises input 61, flat part 62 and output 63; Flat part 62 can be arranged at the optional position between input 61 and the output 63, in the present embodiment, distance between input 61 and the flat part 62 is greater than the distance between output 63 and the flat part 62, be that flat part 62 approaches acoustic reproduction devices such as loud speaker, loudspeaker, reproduce the tonequality of sound with further assurance.Flat part 62 is a flat board, the center conductor of flat part 62 inside should be tabular mutually, in the present embodiment, flat part 62 is a rectangular flat, correspondingly, flat part 62 inside center conductors are rectangular flat, its length can be 1～30cm, width can be 1～10cm, as shown in Figure 4, in the present embodiment, center conductor 8 length of flat part 62 inside are 10cm, width is 3cm, center conductor 8 be provided with opening on two limits up and down, the width of opening can be 1～2mm, opening on two limits can be provided with 4～6 altogether up and down, in the present embodiment, be provided with 5 openings altogether, 3 openings in top, be respectively first opening 81, the 3rd opening 83 and the 5th opening 85, following 2 openings, be respectively second opening 82, the 4th opening 84, opening on two limits is arranged in a crossed manner, from left to right promptly, set gradually, first opening 81, second opening 82, the 3rd opening 83, the 4th opening 84 and the 5th opening 85, the length of these five openings increases progressively to the side that flat part 62 links to each other with output 63 successively from the side that flat part 62 links to each other with input 61,, by opening is set, make the edge length on two limits up and down of center conductor increase greatly, the transmission line that is high-frequency signal increases greatly, and the transmission line of center conductor medium and low frequency signal also increases to some extent simultaneously, but the transmission line of the high-frequency signal after circuit increases is also longer than the transmission line of low frequency signal, make the speed of high-frequency signal reduce, wait for the transmission of low frequency signal, guaranteed the transmission balance with low frequency signal, but therefore transmission of audio signals speed reduce; In order to recover audio signal speed, in position near output, the length of opening constantly increases, increase along with opening length, the width of the center conductor that audio signal is passed through reduces gradually, makes that the audio signal after the balance is quickened transmission, has recovered audio signal transmission speed, thereby the audio signal of feasible transmission is reproduced sound signal better, has improved the transmission of audio signals quality.
In the foregoing description, distance between the opening is successively decreased to the side that flat part 62 links to each other with output 63 successively from the side that flat part 62 links to each other with input 61, left side as center conductor 8 links to each other with input 61, then the distance between the limit, left side of center conductor 8 and first opening 81 is greater than the distance between first opening 81 and second opening 82, distance between second opening 82 and the 3rd opening 83 is greater than the distance of the 3rd opening 83 and the 4th opening 84, and the like, distance between the right edge of the 5th opening 85 and center conductor 8 is the shortest, thereby further balance the transmission speed of high-frequency signal with low frequency signal, improved the tonequality of reproduction sound.
Fig. 5 is the schematic cross-section of the utility model audio transmission line embodiment middle plateform portion, be filled with insulating cement 7 in center conductor 8 openings of flat part 62 inside, firmly center conductor 8, avoid the audio signal of transmission in the vibration interference center conductor 8, effectively ensured the tonequality of reproducing sound.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (8)
1, a kind of audio transmission line is characterized in that, comprising: an input of Lian Jieing, at least one flat part and an output successively; Be provided with opening on the center conductor two opposite edges of described flat part inside, opening on described two limits is arranged in a crossed manner, and the length of described opening increases progressively to the side that described flat part links to each other with described output successively from the side that described flat part links to each other with described input.
2, audio transmission line according to claim 1 is characterized in that, described opening is 4～6.
3, audio transmission line according to claim 1 is characterized in that, the width of described opening is 1～2mm.
According to each described audio transmission line among the claim 1-3, it is characterized in that 4, the distance between the described opening is successively decreased to the side that described flat part links to each other with described output successively from the side that described flat part links to each other with described input.
According to each described audio transmission line among the claim 1-3, it is characterized in that 5, the center conductor width of described flat part inside is 0.1～10cm.
According to each described audio transmission line among the claim 1-3, it is characterized in that 6, the center conductor length of described flat part inside is 1～30cm.
According to each described audio transmission line among the claim 1-3, it is characterized in that 7, the distance between described input and the described flat part is greater than the distance between described output and the described flat part.
8, according to each described audio transmission line among the claim 1-3, it is characterized in that, be provided with insulating cement in the described opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200031917U CN201170971Y (en) | 2008-02-27 | 2008-02-27 | Audio transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200031917U CN201170971Y (en) | 2008-02-27 | 2008-02-27 | Audio transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170971Y true CN201170971Y (en) | 2008-12-24 |
Family
ID=40210022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200031917U Expired - Lifetime CN201170971Y (en) | 2008-02-27 | 2008-02-27 | Audio transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170971Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521057B (en) * | 2008-02-27 | 2012-07-04 | 赵明慧 | Audio transmission wire |
-
2008
- 2008-02-27 CN CNU2008200031917U patent/CN201170971Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521057B (en) * | 2008-02-27 | 2012-07-04 | 赵明慧 | Audio transmission wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081224 Effective date of abandoning: 20080227 |