CN103024626B - Sound box - Google Patents
Sound box Download PDFInfo
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- CN103024626B CN103024626B CN201210544765.2A CN201210544765A CN103024626B CN 103024626 B CN103024626 B CN 103024626B CN 201210544765 A CN201210544765 A CN 201210544765A CN 103024626 B CN103024626 B CN 103024626B
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- bass
- sound channel
- sound
- supporting bracket
- loudspeaker
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Abstract
The invention discloses a sound box which comprises a box body, a loudspeaker, a bass driver and a horn. The horn comprises a straight end, a bent section and a loudspeaker portion, the straight end; the bent section and the loudspeaker portion are sequentially connected from the bass driver to a bass outlet, and the central axis of the straight end is perpendicular to that of the loudspeaker portion; a first sound channel is arranged in the straight end, a loudspeaker port is formed at one end of the first sound channel, the end of the first sound channel is close to the bass driver, the end of the first sound channel, which is close to the loudspeaker port of the bass driver, is larger than the other end of the first sound channel, and the other end of the first sound channel is far from the loudspeaker port of the bass driver; a second sound channel is arranged in the bent section, and the central axis of a sound inlet of the second sound channel is perpendicular to that of a sound outlet of the second sound channel; a hollow loudspeaker cavity is arranged in the loudspeaker portion; and the first sound channel, the second sound channel and the hollow loudspeaker cavity are communicated with one another. The sound box not only can obtain a wide frequency range, but also is good in bass replay effect and sound effect quality.
Description
Technical field
The present invention relates to audio amplifier.
Background technology
The audio amplifier of prior art, the music playback frequency band of single loud speaker has certain width, usually cannot meet the so wide scope of people's ear 20-20kHz completely, therefore, needs to install bass, high-pitched driver, to obtain relatively wide frequency range simultaneously.And be obtain good tonequality, usually a bugle is installed in bass drivers, if authorized announcement date in be 200620059127.1 applyings date at application number be on May 19th, 2006 is the structure disclosing a kind of audio amplifier in the patent documentation on May 23rd, 2007, specifically disclose that the structure of this audio amplifier comprises sound box, bass drivers, high-pitched driver and bugle, two bass drivers and a high-pitched driver are installed in casing, the axis of three is positioned on same perpendicular, and high-pitched driver is between two bass drivers, the vibrating diaphragm of high-pitched driver and bass drivers is positioned at same perpendicular.After adopting said structure, by two bass drivers and a high-pitched driver, can relatively wide frequency range be obtained, and middle bass is synchronous with high pitch, improves tonequality, obtain unique sound effect.When above-mentioned bugle is owing to only having loudspeaker cavity, the bang path of bass is short, and bass is that straight line spreads out of, therefore, and the weak effect of low frequency reproduction.Be such as disclose a kind of bugle in the patent documentation on July 25th, 2007 at application number authorized announcement date in be 200620059123.3 applyings date be on May 19th, 2006, this bugle is horn-like, the first flare and the second flare is formed in trumpet-shaped bugle main body, first and second flares include cardinal extremity and are the horn-like opening outwards gradually opened by cardinal extremity, the opening of the first and second flares is connected, and the common opening forming bugle main body.The opening of the first and second flares is formed by the end face launched to four direction, wherein the opening of the first flare and the opening of the second flare enclose formation by four inclined-planes, and the first flare is connected by one of them adjacent bevel surfaces with the second flare.This structure, first, it arranges two horn mouths in a bugle main body, improves its using function.In addition, bell-mouthed design adopt that four sides cone can keep sound expanding in the structure of gradually carrying out out, can not distortion or reduce audio quality in the process of transmission.But owing to only having loudspeaker cavity, the bang path of bass is short, and bass is that straight line spreads out of, therefore, and the weak effect of low frequency reproduction.
Summary of the invention
The object of this invention is to provide a kind of audio amplifier, this audio amplifier can not only obtain wider frequency range, and, replaying bass effective, audio quality better.
For achieving the above object, a kind of audio amplifier, comprises casing, and casing is provided with high pitch outlet and bass outlet, is provided with loudspeaker, in casing, is provided with bass drivers, bass drivers has been connected with bugle in high pitch exit; Described bugle comprises straight end, bending section and flare; Straight end, bending section and flare connect to bass outlet successively from bass drivers, and the axis of straight end is mutually vertical with the axis of flare; There is in straight end the first sound channel, be formed with horn mouth at the first sound channel near one end of bass drivers, be greater than away from the bell-mouthed one end of bass drivers near the bell-mouthed one end of bass drivers; In bending section, have the second sound channel, the axis entering sound mouth of the second sound channel is mutually vertical with the sound mouth axis of the second sound channel; There is in flare loudspeaker cavity; The first described sound channel, the second sound channel and loudspeaker cavity communicate.
Said structure, is provided with loudspeaker and bass drivers simultaneously, then can obtain wider frequency range after bass and the high mixture of tones.Add straight end and bending section in the prior art, thus increase the transmission path of bass, known according to formula F c=c/4 × π × L × Ln (S1/S0), (wherein Fc represents the cut-off frequency of bugle; C: represent speed of sound; L: the length representing bugle; S1 represents the aperture area of bugle; S0: the throat area representing bugle.), the transmission path of bass in bugle is long, then cut-off frequency is large, makes the effective of replaying bass.In addition, owing to being provided with bending section, the first bending sound channel is defined in bending section, when bass is in the first sound channel, the second sound channel transfer to loudspeaker cavity, the axis entering sound mouth of the second sound channel is mutually vertical with the sound mouth axis of the second sound channel, then can there is reflection and refraction in the second sound channel, thus optimize bass tonequality, thus improve a bass quality.Further, arrange horn mouth on the first sound channel, bass more can be transferred in the first sound channel, improve the utilance to bass.
As improvement, in loudspeaker cavity, be provided with dividing plate, dividing plate comprises into sound guide section and go out sound guide section, and the cross section entering sound guide section is pre-large post-small taper, and the cross section going out sound guide section is pre-small post-large taper, enters sound guide section and goes out sound guide section and be connected.This structure, is separated into two parts by dividing plate by loudspeaker cavity, like this, can improve and use power; And dividing plate is arranged to two sections, and two sections are all tapered, and like this, entering sound guide section can derive bass smoothly, and be diffused going out sound guide section place bass, relative to prior art, the tonequality of bass is better.
As improvement, the cross section of loudspeaker cavity is square, and entering sound guide section with relative flare inwall angulation is 9 degree.
As improvement, first supporting bracket and the second supporting bracket are installed in casing, first supporting bracket is provided with the first through hole, second supporting bracket is provided with the second through hole, one end of first supporting bracket is fixed on casing, the other end of the first supporting bracket is between bass drivers and straight end, first through hole communicates with the first sound channel, one end of second supporting bracket is fixed in casing, the other end of the second supporting bracket is between straight end and bending section, and the second through hole communicates with the first sound channel and the second sound channel.This structure, utilizes the first supporting bracket and the second supporting bracket, can better fix straight end, bending section and flare, and three firmly be linked together.
As improvement, the large end of flare is provided with edge, and front surface and the rear surface at edge are parallel to each other; Edge be fixed on be positioned at bass outlet casing on.
Accompanying drawing explanation
Fig. 1 is the structural representation of audio amplifier.
Fig. 2 is the structural representation of bugle.
Fig. 3 is the stereogram of straight end.
Fig. 4 is the generalized section of straight end.
Fig. 5 is the stereogram of bending section.
Fig. 6 is the generalized section of bending section.
Fig. 7 is the front view of flare.
Fig. 8 is the left view of flare.
Fig. 9 is the vertical view of flare.
Figure 10 is the stereogram of the first supporting bracket.
Figure 11 is the stereogram of the second supporting bracket.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
As shown in Figure 1, audio amplifier comprises casing 1, loudspeaker 2, bass drivers 3 and bugle 4.Casing 1 has high pitch outlet 11 and bass outlet 12, loudspeaker 2 be arranged on be positioned at high pitch outlet 11 casing on, described bass drivers 3 is arranged in casing 1.
As shown in Figure 2, described bugle 4 comprises straight end 41, bending section 42 and flare 43.As shown in Figure 3 and Figure 4, in straight end 41, there is the first sound channel 411, be formed with horn mouth 412 at the first sound channel 411 near one end of bass drivers, be greater than away from the bell-mouthed one end of bass drivers near the bell-mouthed one end of bass drivers 3.As shown in Figure 5 and Figure 6, the axis entering sound mouth in bending section 42 with the second sound channel 421, second sound channel 421 is mutually vertical with the sound mouth axis of the second sound channel.As shown in Figure 7 to 9, there is in flare 43 loudspeaker cavity 431, dividing plate 432 is provided with in loudspeaker cavity 431, dividing plate 432 comprises into sound guide section 4321 and goes out sound guide section 4322, the cross section entering sound guide section 4321 is pre-large post-small taper, the cross section going out sound guide section 4322 is pre-small post-large taper, enters sound guide section and goes out sound guide section and be connected; The cross section of loudspeaker cavity is square, entering sound guide section with relative flare inwall angulation is 9 degree, and loudspeaker cavity is separated into two cavitys by dividing plate, like this, can improve and use power, and dividing plate is arranged to two sections, and two sections are all tapered, like this, enter sound guide section can smoothly bass be derived, be diffused going out sound guide section place bass, relative to prior art, the tonequality of bass is better.As shown in Figure 1, be provided with the first supporting bracket 5 and the second supporting bracket 6 in casing 1, as shown in Figure 10 and Figure 11, the first supporting bracket 5 is provided with the first through hole 51, second supporting bracket 6 and is provided with the second through hole 61.Bass drivers 3 is arranged in the first supporting bracket 5, the upper end of straight end is installed on the supporting plate, first through hole communicates with the first sound channel, the lower end of straight end is arranged in the second supporting bracket, one end of bending section is arranged in the second supporting bracket, second through hole communicates with the first sound channel and the second sound channel, and the first described sound channel, the second sound channel and loudspeaker cavity communicate, and the axis of straight end is mutually vertical with the axis of flare.As shown in Figure 7, the large end of flare 43 is provided with edge 433, and front surface and the rear surface at edge 433 are parallel to each other; Edge be fixed on be positioned at bass outlet casing on.In the present invention, the left side of front finger Fig. 1, the right of rear finger Fig. 1.
In the present invention, be provided with loudspeaker and bass drivers simultaneously, then can obtain wider frequency range after bass and the high mixture of tones.Add straight end and bending section in the prior art, thus increase the transmission path of bass, known according to formula F c=c/4 × π × L × Ln (S1/S0), (wherein Fc represents the cut-off frequency of bugle; C: represent speed of sound; L: the length representing bugle; S1 represents the aperture area of bugle; S0: the throat area representing bugle.), the transmission path of bass in bugle is long, then cut-off frequency is large, makes the effective of replaying bass.In addition, owing to being provided with bending section, the first bending sound channel is defined in bending section, when bass is in the first sound channel, the second sound channel transfer to loudspeaker cavity, the axis entering sound mouth of the second sound channel is mutually vertical with the sound mouth axis of the second sound channel, then can there is reflection and refraction in the second sound channel, thus optimize bass tonequality, thus improve a bass quality.Further, arrange horn mouth on the first sound channel, bass more can be transferred in the first sound channel, improve the utilance to bass.
Claims (2)
1. an audio amplifier, comprises casing, and casing is provided with high pitch outlet and bass outlet, is provided with loudspeaker, in casing, is provided with bass drivers, bass drivers is connected with bugle in high pitch exit; It is characterized in that: described bugle comprises straight end, bending section and flare; Straight end, bending section and flare connect to bass outlet successively from bass drivers, and the axis of straight end is mutually vertical with the axis of flare; There is in straight end the first sound channel, be formed with horn mouth at the first sound channel near one end of bass drivers, be greater than away from the bell-mouthed one end of bass drivers near the bell-mouthed one end of bass drivers; In bending section, have the second sound channel, the axis entering sound mouth of the second sound channel is mutually vertical with the sound mouth axis of the second sound channel; There is in flare loudspeaker cavity; The first described sound channel, the second sound channel and loudspeaker cavity communicate; In loudspeaker cavity, be provided with dividing plate, dividing plate comprises into sound guide section and go out sound guide section, and the cross section entering sound guide section is pre-large post-small taper, and the cross section going out sound guide section is pre-small post-large taper, enters sound guide section and goes out sound guide section and be connected; First supporting bracket and the second supporting bracket are installed in casing, first supporting bracket is provided with the first through hole, second supporting bracket is provided with the second through hole, one end of first supporting bracket is fixed on casing, the other end of the first supporting bracket is between bass drivers and straight end, and the first through hole communicates with the first sound channel, and one end of the second supporting bracket is fixed in casing, the other end of the second supporting bracket is between straight end and bending section, and the second through hole communicates with the first sound channel and the second sound channel.
2. audio amplifier according to claim 1, is characterized in that: the large end of flare is provided with edge, and front surface and the rear surface at edge are parallel to each other; Edge be fixed on be positioned at bass outlet casing on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544765.2A CN103024626B (en) | 2012-12-17 | 2012-12-17 | Sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544765.2A CN103024626B (en) | 2012-12-17 | 2012-12-17 | Sound box |
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| Publication Number | Publication Date |
|---|---|
| CN103024626A CN103024626A (en) | 2013-04-03 |
| CN103024626B true CN103024626B (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210544765.2A Active CN103024626B (en) | 2012-12-17 | 2012-12-17 | Sound box |
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| Country | Link |
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| CN (1) | CN103024626B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994446A (en) * | 2015-06-19 | 2015-10-21 | 尚平 | Loudspeaker box |
| CN104994452A (en) * | 2015-06-19 | 2015-10-21 | 尚平 | Loudspeaker box |
| CN105120397A (en) * | 2015-08-19 | 2015-12-02 | 东莞市格雷特电子科技有限公司 | Multidirectional meandering sound channel sound device |
| CN106792408A (en) * | 2017-01-09 | 2017-05-31 | 张祥奎 | A kind of collapsible horn of public address |
| CN106792409A (en) * | 2017-01-09 | 2017-05-31 | 张祥奎 | A kind of collapsible horn of public address |
| CN114449418B (en) * | 2022-01-25 | 2022-12-30 | 苏州达丰齐信息科技有限公司 | Cavity reflection type sounding structure |
Citations (6)
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|---|---|---|---|---|
| CN2636560Y (en) * | 2003-07-10 | 2004-08-25 | 何玉成 | Acoustic consonance amplifying voice box |
| CN1575031A (en) * | 2003-06-12 | 2005-02-02 | 增田正 | Bass loudspeaker apparatus and multiway loudspeaker system having the same |
| CN2882175Y (en) * | 2005-11-30 | 2007-03-21 | 贺翔 | Multi-audio loudspeaker for wire array |
| CN201718038U (en) * | 2010-04-14 | 2011-01-19 | 东莞市三基音响科技有限公司 | High-fidelity high-sound pressure active speaker system |
| CN201898605U (en) * | 2010-11-24 | 2011-07-13 | 天津中环真美声学技术有限公司 | Combination gaining connector for four microphone cartridges |
| CN202602865U (en) * | 2012-04-20 | 2012-12-12 | 李齐车 | Coupling and superposing transmission line sound box |
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2012
- 2012-12-17 CN CN201210544765.2A patent/CN103024626B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1575031A (en) * | 2003-06-12 | 2005-02-02 | 增田正 | Bass loudspeaker apparatus and multiway loudspeaker system having the same |
| CN2636560Y (en) * | 2003-07-10 | 2004-08-25 | 何玉成 | Acoustic consonance amplifying voice box |
| CN2882175Y (en) * | 2005-11-30 | 2007-03-21 | 贺翔 | Multi-audio loudspeaker for wire array |
| CN201718038U (en) * | 2010-04-14 | 2011-01-19 | 东莞市三基音响科技有限公司 | High-fidelity high-sound pressure active speaker system |
| CN201898605U (en) * | 2010-11-24 | 2011-07-13 | 天津中环真美声学技术有限公司 | Combination gaining connector for four microphone cartridges |
| CN202602865U (en) * | 2012-04-20 | 2012-12-12 | 李齐车 | Coupling and superposing transmission line sound box |
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| Publication number | Publication date |
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| CN103024626A (en) | 2013-04-03 |
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