CN101783987B - Novel sound box - Google Patents
Novel sound box Download PDFInfo
- Publication number
- CN101783987B CN101783987B CN2010103007589A CN201010300758A CN101783987B CN 101783987 B CN101783987 B CN 101783987B CN 2010103007589 A CN2010103007589 A CN 2010103007589A CN 201010300758 A CN201010300758 A CN 201010300758A CN 101783987 B CN101783987 B CN 101783987B
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- sound
- bass
- horn
- full range
- low
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- 230000005236 sound signal Effects 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 19
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The invention relates to a novel sound box, which comprises a casing, a power amplifier, an electronic frequency demultiplier, a low-sound horn and a full-frequency band horn, wherein the casing comprises an upper cavity and a lower cavity; a low-sound through hole adaptive with the low-sound horn is formed between the upper cavity and the lower cavity; an box body is internally provided with the low-sound horn, the full-frequency band horn, the power amplifier and the electronic frequency demultiplier; the power amplifier is connected with an audio signal interface; a sounding paper basin of the low-sound horn places downwards and faces to the lower cavity through the low-sound through hole; the lower cavity is in a structure with an open lower part; the lower part of the lower cavity is provided with a plurality of gaps; and casing supporting legs are arranged among the gaps. When the novel sound box is in use, the lower cavity and a placing surface of the sound box form an echo cavity; and sound wave emitted by the low-sound horn is reflected in the echo cavity for multiple times and is then transmitted, so that the low sound effect can be greatly enhanced.
Description
Technical field
The present invention relates to a kind of stereo set, especially relate to a kind of audio amplifier.
Background technology
Audio amplifier is a kind of very common electrical equipment, in order to improve its acoustics, often needs full range band loudspeaker and bass horn to be used.So-called full range band loudspeaker are meant the loudspeaker that can cover low frequency, intermediate frequency and high-frequency range playback.The lower frequency limit of full range band loudspeaker is generally 30Hz-60Hz, and upper limiting frequency is 15KHz-20KHz.In general middle-size and small-size sound system, only can undertake the playback task fully with a pair of or two pairs of full range band audio amplifiers.Bass horn generally is the special-purpose loudspeaker that are used for replenishing the low frequency playback of full range band loudspeaker.The dynamics and shock sense of this type loudspeaker in order to strengthen the low frequency playback.During use, through behind an Active crossover device (partial device) frequency division, low frequency signal is sent into a special bass power amplifier mostly, promote bass horn again.Like publication number is that the Chinese patent of CN1980486 discloses a kind of audio amplifier module; Comprise casing, high, medium and low sound loud speaker and the circuit that is used for processing audio signal and is connected with these loud speakers, this high, medium and low sound loud speaker all is located in this casing; This woofer is located at casing one side; This casing is provided with supporter in this side, and this supporter is used for contacting with the supporting surface that supports this casing, between this casing and supporting surface, to form a bass tone chamber.Publication number be the Chinese patent of CN2796285 disclose a kind of can simplified structure and the audio amplifier of playback bass.Be directly connected in casing by vibration component and magnetic circuit assembly through cone and base, form complete sound-reproducing system.Owing to cancelled the basin frame, thereby simplify the structure, strengthened cone, particularly to the reducing power of bass sound.The sound that the bass horn of these technical schemes sends is all directly dispersed to the audience, if comparatively small-sized bass horn, its effect can't be very desirable.Be put in the small-sized audio amplifier that uses on the desktop at some, its main loudspeaker and people's ear whether over against, also extremely important for its acoustics, also should be one of factor of considering of audio amplifier design demand emphasis.
Summary of the invention
The present invention mainly is the bad technical problem of bass effect that solves the small-sized audio amplifier of existing in prior technology, and a kind of compact conformation, audio amplifier that bass effect is good are provided.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals: a kind of novel audio amplifier; Comprise housing, power amplifier, Active crossover device, bass horn and full range band loudspeaker; It is characterized in that described housing comprises upper cavity and lower chamber; Be provided with between the described upper and lower cavity one with the suitable bass through hole of bass horn, be provided with bass horn, full range band loudspeaker, power amplifier and Active crossover device in the described upper cavity, described power amplifier links to each other with audio signal interface; The pronunciation cone of described bass horn passes through described bass through hole down towards lower chamber; Described lower chamber is a lower open formula structure, and its underpart is provided with some breach, is the housing leg between the breach; Described breach area accounts for the 1/3-3/4 of lower chamber lateralarea, and the pronunciation cone of described full range band loudspeaker is provided with through the through hole of being located on the upper cavity sidewall outwardly.This novel audio amplifier in use; The face of putting of lower chamber and audio amplifier forms an echo chamber; The sound wave that bass horn sends repeatedly spreads out of after the reflection in the echo chamber, has strengthened bass effect greatly, and this structure has effectively solved the bad problem of bass effect of small-sized audio amplifier.And the user can also be different according to the hobby of oneself, and it is placed in putting on the face of unlike material, and the sound wave that this bass horn sends has increased the enjoyment of music appreciating because the material difference of reflecting surface has different effects.
As preferably, described lower chamber inboard is vaulted, and described bass through hole is located at vaulted top.Sound wave is vaulted reflection, and its audio is more simple and honest, has further strengthened the bass effect of bass horn.
As preferably, the difference in height of the pronunciation cone of described bass horn and housing leg bottom is 60-100mm.If the difference in height of pronunciation cone and housing leg bottom is excessive, sound wave need just can send through too much reflection, and its loudness can be affected; If this difference in height is too small, the order of reflection of sound wave in the echo chamber is less, is difficult to the bass effect that reaches desirable.Draw through test, this difference in height is when 60-100mm, and effect is comparatively desirable, and when this difference in height was 88mm, its effect was best.
As preferably, the elevation angle of described full range band loudspeaker axis is the 15-35 degree.General this small-sized audio amplifier is positioned on the desktop about 1 meter, and the setting at this elevation angle can make audio amplifier be placed on the desktop about 1 meter, its full range band loudspeaker can comparatively prepare over against an ear that is seated at the user before the table.
As preferably, described full range band loudspeaker are provided with two, and both elevations angle are identical, and both angles are the 90-130 degree.The setting of this angle be for make be seated at user before the desktop of placing audio amplifier can be in its conventional scope of activities can just can loudspeaker.
As preferably, described leg has the damping pad.Because the direction of bass horn is down, imitate big vibration so leg is put can produce between the face with it, and produce noise, have a strong impact on tonequality sometimes, this damping pad can be eliminated consequent vibration, raising tonequality.
The beneficial effect that brings of the present invention is, solved the bad technical problem of bass effect of the small-sized audio amplifier of existing in prior technology, realized a kind of compact conformation, the audio amplifier that bass effect is good.
Description of drawings
Accompanying drawing 1 is a kind of stereogram of the present invention;
Accompanying drawing 2 is a kind of cutaway views of the present invention.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment: like Fig. 1, shown in Figure 2; The present invention is a kind of novel audio amplifier; Comprise housing, power amplifier, Active crossover device, bass horn 5 and two full range band loudspeaker 6; Described housing comprises upper cavity 1 and lower chamber 8, and the lower chamber inboard is vaulted, and vaulted top is provided with a bass through hole that is connected with upper cavity.This bass through hole and described bass horn 5 are suitable.Be provided with bass horn, full range band loudspeaker, power amplifier and Active crossover device in the described upper cavity; Described power amplifier links to each other with audio signal interface 7; The pronunciation cone of described bass horn passes through described bass through hole down towards lower chamber, and described lower chamber is a lower open formula structure, and its underpart is provided with some breach 3; It between the breach housing leg 2; Leg has damping pad 4, and described breach area accounts for 1/2 of lower chamber lateralarea, and the difference in height of the pronunciation cone of bass horn and housing leg bottom is 88mm.The pronunciation cone of described satisfactory to both parties frequency band loudspeaker is provided with through the through hole of being located on the upper cavity sidewall outwardly, and the elevation angle of this full range band loudspeaker axis is 30 degree, and the angle between the satisfactory to both parties frequency band loudspeaker axis is 117 degree.
The present invention in use; The face of putting of lower chamber and audio amplifier forms an echo chamber; The sound wave that bass horn sends repeatedly spreads out of after the reflection in the echo chamber, has strengthened bass effect greatly, and this structure has effectively solved the bad problem of bass effect of small-sized audio amplifier.And the user can also be different according to the hobby of oneself, and it is placed in putting on the face of unlike material, and the sound wave that this bass horn sends has increased the enjoyment of Music Appreciation because the material difference of reflecting surface has different effects.
So the present invention has compact conformation, bass effect is good, the characteristics such as effect of its bass of appropriate change as required.
Claims (7)
1. novel audio amplifier; Comprise housing, power amplifier, Active crossover device, bass horn and full range band loudspeaker; It is characterized in that described housing comprises upper cavity (1) and lower chamber (8); Be provided with between the described upper and lower cavity one with the suitable bass through hole of bass horn (5), be provided with bass horn, full range band loudspeaker (6), power amplifier and Active crossover device in the described upper cavity, described power amplifier links to each other with audio signal interface (7); The pronunciation cone of described bass horn passes through described bass through hole down towards lower chamber; Described lower chamber is a lower open formula structure, and its underpart is provided with some breach (3), is housing leg (2) between the breach; Described breach area accounts for the 1/3-3/4 of lower chamber lateralarea, and the pronunciation cone of described full range band loudspeaker is provided with through the through hole of being located on the upper cavity sidewall outwardly.
2. a kind of novel audio amplifier according to claim 1 is characterized in that described lower chamber inboard is vaulted, and described bass through hole is located at vaulted top.
3. a kind of novel audio amplifier according to claim 1 is characterized in that the pronunciation cone of described bass horn and the difference in height of housing leg bottom are 60-100mm.
4. according to claim 1 or 2 or 3 described a kind of novel audio amplifiers, it is characterized in that the elevation angle of described full range band loudspeaker axis is the 15-35 degree.
5. according to claim 1 or 2 or 3 described a kind of novel audio amplifiers, it is characterized in that described full range band loudspeaker are provided with two, both elevations angle are identical, and both angles are the 90-130 degree.
6. a kind of novel audio amplifier according to claim 4 is characterized in that described full range band loudspeaker are provided with two, and both elevations angle are identical, and both angles are the 90-130 degree.
7. according to claim 1 or 2 or 3 described a kind of novel audio amplifiers, it is characterized in that described leg has damping pad (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103007589A CN101783987B (en) | 2010-01-26 | 2010-01-26 | Novel sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103007589A CN101783987B (en) | 2010-01-26 | 2010-01-26 | Novel sound box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101783987A CN101783987A (en) | 2010-07-21 |
| CN101783987B true CN101783987B (en) | 2012-09-19 |
Family
ID=42523767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010103007589A Expired - Fee Related CN101783987B (en) | 2010-01-26 | 2010-01-26 | Novel sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101783987B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103763656A (en) * | 2013-12-30 | 2014-04-30 | 刘骏涛 | Miniature stereo |
| CN107079208B (en) * | 2014-10-06 | 2019-08-02 | 珍尼雷克公司 | Public address set with waveguide |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370638Y (en) * | 1998-04-16 | 2000-03-22 | 敖茂群 | Point source of sound speaker |
| CN2652073Y (en) * | 2003-11-07 | 2004-10-27 | 王恒 | Loudspeaker boxes |
| CN101431703A (en) * | 2008-11-12 | 2009-05-13 | 张志明 | Rotating loudspeaker box |
| CN201383863Y (en) * | 2009-03-17 | 2010-01-13 | 东莞耳神电声科技有限公司 | Sound box with variable resonator cavity |
-
2010
- 2010-01-26 CN CN2010103007589A patent/CN101783987B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370638Y (en) * | 1998-04-16 | 2000-03-22 | 敖茂群 | Point source of sound speaker |
| CN2652073Y (en) * | 2003-11-07 | 2004-10-27 | 王恒 | Loudspeaker boxes |
| CN101431703A (en) * | 2008-11-12 | 2009-05-13 | 张志明 | Rotating loudspeaker box |
| CN201383863Y (en) * | 2009-03-17 | 2010-01-13 | 东莞耳神电声科技有限公司 | Sound box with variable resonator cavity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101783987A (en) | 2010-07-21 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG COMPUPAL CORP. Free format text: FORMER OWNER: ZHANG ZHIMING Effective date: 20111116 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20111116 Address after: 314113 No. 1555, Jiashan Avenue, Jiashan County, Jiaxing, Zhejiang Applicant after: Zhejiang Compupal Corp. Address before: 314113 No. 1555, Jiashan Avenue, Jiashan County, Zhejiang Province Applicant before: Zhang Zhiming |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171101 Address after: Jiaxing City, Zhejiang province 314113 Jiashan County town of Jiashan Dayun Road No. 1555 building A1 Patentee after: Zhejiang Mojie Electronic Co.,Ltd. Address before: 314113 No. 1555, Jiashan Avenue, Jiashan County, Jiaxing, Zhejiang Patentee before: Zhejiang Compupal Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20190126 |