CN202696859U - Multiple steering thin sound box for pass-band broadcast - Google Patents
Multiple steering thin sound box for pass-band broadcast Download PDFInfo
- Publication number
- CN202696859U CN202696859U CN2012202758462U CN201220275846U CN202696859U CN 202696859 U CN202696859 U CN 202696859U CN 2012202758462 U CN2012202758462 U CN 2012202758462U CN 201220275846 U CN201220275846 U CN 201220275846U CN 202696859 U CN202696859 U CN 202696859U
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- China
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- sound
- audio amplifier
- phonocatheter
- sound wave
- multiple steering
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- Expired - Fee Related
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Abstract
The utility model relates to a sound box for pass-band broadcast. The sound box is provided with an ABS (Acrylonitrile Butadiene StyreneAcrylonitrile Butadiene Styrene) plastic box body (12); a driving head with a spherical vibrating diaphragm is arranged in the box body; when a broadcast signal is switched into the driving head, the spherical vibrating diaphragm (9) sends a sound wave, the sound wave firstly passes through a phase plug (10) to eliminate the interference of a high-band sound wave phase, then passes through a sound box acoustic conduction pipe (1), completes sound steering for the first time to an acoustic conduction pipe (2) through an inflection point (5), completes sound steering for the second time to an acoustic conduction pipe (3) through an inflection point (6), completes sound steering for the third time to an acoustic conduction pipe (4) through an inflection point (7) and passes through a metal surface net (11) to be transmitted outside the box body (12) of the sound box. Due the sound wave generating and transmitting process of the sound box, the sound box has the advantages of high flexibility, high efficiency, good directivity and small volume.
Description
Affiliated technical field
The utility model relates to a kind of audio amplifier, especially message inside for passband broadcasting by the processing of multipath reflection, make it possess highly sensitive, broadcast sounds is clear, distortion is little, build is thin
Background technology
At present, known broadcasting audio amplifier is to pack into the loudspeaker of conical diaphragm to broadcast in the audio amplifier, the sound wave that conical diaphragm work is sent directly is radiated behind the very large Room, the hall space wave surface change of shape from the less vibrating diaphragm, and to cause very greatly efficient low be the low shortcoming of sensitivity, its acoustic reflection is obvious simultaneously, particularly using in the good glass modern architecture of smooth ground, metope and the daylighting such as platform, waiting hall is the muddy phenomenon of broadcast sounds that is caused by reflected sound, and volume is larger.
Summary of the invention
In order to overcome unintelligible, the bulky shortcoming of sound that the sensitivity of existing broadcasting audio amplifier is low, reflection causes, the utility model provides a kind of audio amplifier, this audio amplifier is the highly sensitive so that area coverage of single audio amplifier large (saving resource during project installation) not only, and has effectively suppressed the muddy phenomenon that sound reflection causes in the modern architecture.
Technical scheme
The technical scheme that its technical problem that solves the utility model adopts is: the driving head that a sphere vibrating diaphragm is installed in audio amplifier, its operation principle is that the voice coil loudspeaker voice coil of sphere vibrating diaphragm is packed in the magnetic slit of driving head, behind the accessing broadcast signal, voice coil loudspeaker voice coil moves in magnetic field and promotes the ball type vibration membrane motion and send sound wave.The loudspeaker that the sound wave that the sphere vibrating diaphragm sends does not have picture to broadcast now the conical diaphragm of packing in the audio amplifier directly push sound wave outside the audio amplifier, but with sound wave at first by a phase plug eliminate the interference of high band sound wave phase place, again by the audio amplifier middle section long-pending become gradually propagate in the large phonocatheter after, so that sound wave spreading apart gradually, reach at last the audio amplifier outside, the change of shape of acoustic wave front is less, has reached purpose highly sensitive, high efficiency.Owing to having adopted above-mentioned sound wave load mode so that the directive property of sound is high, effectively suppressed the muddiness impact that sound reflection produces simultaneously.In order to solve the phonocatheter long enough, the audio amplifier volume little problem of trying one's best, sound box has used the ABS plastic injection molding process, phonocatheter is turned to by 3 times realized slim external type body.
The beneficial effects of the utility model are, the characteristic ssensitivity level of audio amplifier reaches 105dB, exceeds 8-10dB than present speaker products, and the area that single product work covers is large, directive property good, reflected sound is few, little being easy to of volume installed.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the profile of the utility model audio amplifier.
Fig. 2 is the front elevation of the utility model audio amplifier.。
(1) first phonocatheter, (2) second phonocatheters, (3) the 3rd phonocatheters, (4) the 4th phonocatheters, (5) phonocatheter turning point one, (6) phonocatheter turning point two, (7) phonocatheter turning point three, (8) voice coil loudspeaker voice coil, (9) ball type vibration membrane, (10) phase plug, (11) metal veil, (12) ABS plastic casing among the figure.
Embodiment
In Fig. 1, behind audio amplifier accessing broadcast signal, voice coil loudspeaker voice coil (8) moves in the magnetic slit of driving head and promotes ball type vibration membrane (9) and send sound wave, sound wave is at first eliminated the interference of high band sound wave phase place by phase plug (10), become gradually large phonocatheter (1) by area again, propagate into turning point (5), propagate into turning point (6) through phonocatheter (2), propagating into turning point (7) through phonocatheter (3) again goes to through phonocatheter (4), pass veil (11) sound wave and spread out of sound box (12), spreading apart gradually reached highly sensitive, the purpose of high efficiency.Owing to having adopted above-mentioned sound wave load mode so that the directive property of sound is high, effectively suppressed the muddiness impact that sound reflection produces simultaneously.In order to solve the phonocatheter long enough, the audio amplifier volume little problem of trying one's best, sound box has used the ABS plastic injection molding process, and phonocatheter (1) (2) (3) (4) has been realized slim external type body by turning to 3 times of (5) (6) (7) point of Fig. 1.
Claims (5)
1. a passband is broadcasted with multiple steering-type thin type speaker, sheathing material is ABS plastic, it is characterized in that installing in the audio amplifier one with the ball type vibration membrane driving head, during driving head accessing broadcast signal, ball type vibration membrane (9) sends sound wave, and sound wave propagates into outside the audio amplifier in audio amplifier phonocatheter phonocatheter (1) (2) (3) (4).
2. passband according to claim 1 is broadcasted with multiple steering-type thin type speaker, and the sound wave that sends when it is characterized in that spherical sound film work is at first eliminated the interference of high band sound wave phase place by phase plug (10).
3. passband according to claim 1 and 2 is broadcasted with multiple steering-type thin type speaker, and ball type vibration membrane is propagated in the phonocatheter (1) (2) (3) (4) in the audio amplifier phonocatheter, it is characterized in that the area of phonocatheter progressively strengthens.
4. passband broadcasting according to claim 3 is characterized in that with multiple steering-type thin type speaker phonocatheter has experienced 3 times and turned in audio amplifier, and turning point is (5) (6) (7).
5. passband according to claim 1 broadcasting is with multiple steering-type thin type speaker, it is characterized in that the audio amplifier front blocks in audio amplifier sounding mouth with metal veil (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202758462U CN202696859U (en) | 2012-06-13 | 2012-06-13 | Multiple steering thin sound box for pass-band broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202758462U CN202696859U (en) | 2012-06-13 | 2012-06-13 | Multiple steering thin sound box for pass-band broadcast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696859U true CN202696859U (en) | 2013-01-23 |
Family
ID=47552408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202758462U Expired - Fee Related CN202696859U (en) | 2012-06-13 | 2012-06-13 | Multiple steering thin sound box for pass-band broadcast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973339A (en) * | 2015-12-30 | 2017-07-21 | 哈曼国际工业有限公司 | Acoustic lens system for loudspeaker |
-
2012
- 2012-06-13 CN CN2012202758462U patent/CN202696859U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973339A (en) * | 2015-12-30 | 2017-07-21 | 哈曼国际工业有限公司 | Acoustic lens system for loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20150613 |
|
| EXPY | Termination of patent right or utility model |