CN2556886Y - Loudspeaker box - Google Patents
Loudspeaker box Download PDFInfo
- Publication number
- CN2556886Y CN2556886Y CN 02271527 CN02271527U CN2556886Y CN 2556886 Y CN2556886 Y CN 2556886Y CN 02271527 CN02271527 CN 02271527 CN 02271527 U CN02271527 U CN 02271527U CN 2556886 Y CN2556886 Y CN 2556886Y
- Authority
- CN
- China
- Prior art keywords
- leading note
- audio amplifier
- divided
- sound
- sound box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model relates to a bass reflex sound box which comprises a box body and a speaker, wherein, the sound box body is provided with n celotex boards which separate the interior of the box body into a leading note channel with N sections (N is equal to n and is more than or equal to 2), and the terminal of the leading note channel is provided with an inverted tube which leads out side of the box. The utility model can prevent high frequency sounds generating in the sound box and noises coming out of the sound box, thus leading the play effect to be more genuine.
Description
Affiliated technical field
The utility model relates to a kind of audio amplifier, particularly a kind of bass reflex type audio amplifier.
Background technology
Existing bass reflex type audio amplifier is to open a louver on closed audio amplifier, and load onto phase-reversing tube, compare closed audio amplifier, this audio amplifier can reach the effect of avoiding acoustic pressure to lower, strengthen bass, but phase-reversing tube length is shorter, be shorter than the width of audio amplifier, even the phase-reversing tube length that has is less than half of audio amplifier width, during audio amplifier work, the sound wave that send at the loud speaker back side in the audio amplifier can directly spread out of outside the case, high frequency sound wave of carrying secretly in the sound wave and noise also can spread out of outside the case under the situation of complete attenuation not, thereby influence the playback effect of audio amplifier.
Summary of the invention
The purpose of this utility model provides a kind of bass reflex type audio amplifier that can prevent effectively that high frequency sound wave and noise from disturbing.
The utility model is to realize like this, audio amplifier is made up of casing and loud speaker, in the sound box device perpendicular to sound box side panel and area less than by the n piece sound panel of area of section, box house is divided into a snakelike circuitous leading note passage (n=N 〉=2) that is divided into the N section, and the end of leading note passage has leads to the outer phase-reversing tube of case.
Described sound box sound panel is counted n=4, is divided into a leading note passage that is divided into four sections, and phase-reversing tube exports at the leading note channel end.
Described sound box sound panel is counted n=5, is divided into a leading note passage that is divided into five sections, and phase-reversing tube exports at the leading note channel end.
The beneficial effects of the utility model are that during audio amplifier work, depletion did not totally have high frequency sound wave and noise to spread out of outside the audio amplifier after its inner high frequency sound wave that produces and noise had passed through the leading note passage that is formed by sound panel, made playback effect just pure more.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model embodiment 1 cross-sectional schematic;
Fig. 2 is the utility model embodiment 2 cross-sectional schematic.
1. casings in the accompanying drawing, 2. sound panel, 3. loud speaker, 4. leading note passage, 5. phase-reversing tube, 6. louver.
Embodiment
Embodiment 1
With reference to Fig. 1, the utility model is made up of casing 1 and loud speaker 3, be divided into four section snakelike circuitous leading note passage 4 perpendicular to sound box side panel and area less than being divided into by four in the casing 1 by the sound panel 2 of area of section, end at leading note passage 4 has a louver 6 that leads to outside the case, and load onto phase-reversing tube 5 outside case, the audio amplifier outlet is located at the end of leading note passage 4.During audio amplifier work, the loud speaker back side produces sound wave and spreads out of outside the case through circuitous leading note passage 4 and the phase-reversing tube 5 that sound panel 3 is divided into successively, these circuitous leading note passages can prolong the bass sound wave and spread out of the outer time of case, high frequency sound of carrying secretly in the bass sound wave and noise can be decayed through these circuitous leading note passages the time gradually, disappeared totally before outside spreading out of case, the remaining bass sound wave of removing high frequency sound and noise spreads out of outside the case, the music that makes audio amplifier emit is not subjected to the interference of high frequency sound and noise, reaches pure positive playback effect.
Embodiment 2
With reference to Fig. 2, embodiment 2 installs many sound panels additional on the basis of embodiment 1, make it to be divided into a leading note passage that is divided into five sections by five sound panels 3, opens a louver 6 at the end of leading note passage equally, load onto phase-reversing tube 5, the audio amplifier outlet is located at the end of leading note passage 4.
Claims (3)
1. audio amplifier, form by casing and loud speaker, it is characterized in that in the sound box device perpendicular to sound box side panel and area less than by the n piece sound panel of area of section, box house is divided into a snakelike circuitous leading note passage (n=N 〉=2) that is divided into the N section, and the end of leading note passage is provided with and leads to the outer phase-reversing tube of case.
2. audio amplifier according to claim 1 is characterized in that, described casing inner baffle plate is counted n=4, is divided into four sections leading note passages, and phase-reversing tube exports at the leading note channel end.
3. audio amplifier according to claim 1 is characterized in that, described casing inner baffle plate is counted n=5, is divided into five sections leading note passages, and phase-reversing tube exports at the leading note channel end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02271527 CN2556886Y (en) | 2002-07-05 | 2002-07-05 | Loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02271527 CN2556886Y (en) | 2002-07-05 | 2002-07-05 | Loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2556886Y true CN2556886Y (en) | 2003-06-18 |
Family
ID=33736367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02271527 Expired - Fee Related CN2556886Y (en) | 2002-07-05 | 2002-07-05 | Loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2556886Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101459864B (en) * | 2007-09-21 | 2013-02-13 | 三星电子株式会社 | Speaker apparatus of mobile communication terminal for outputting high quality sound |
| WO2024140380A1 (en) * | 2022-12-27 | 2024-07-04 | 北京大觥声扬科技有限公司 | Sound production unit and acoustic device |
-
2002
- 2002-07-05 CN CN 02271527 patent/CN2556886Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101459864B (en) * | 2007-09-21 | 2013-02-13 | 三星电子株式会社 | Speaker apparatus of mobile communication terminal for outputting high quality sound |
| WO2024140380A1 (en) * | 2022-12-27 | 2024-07-04 | 北京大觥声扬科技有限公司 | Sound production unit and acoustic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |