CN207135255U - A kind of audio amplifier of built-in sound-absorbing material - Google Patents
A kind of audio amplifier of built-in sound-absorbing material Download PDFInfo
- Publication number
- CN207135255U CN207135255U CN201720707677.8U CN201720707677U CN207135255U CN 207135255 U CN207135255 U CN 207135255U CN 201720707677 U CN201720707677 U CN 201720707677U CN 207135255 U CN207135255 U CN 207135255U
- Authority
- CN
- China
- Prior art keywords
- sound
- unit
- absorbing material
- bass
- cavity
- 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
Abstract
It the utility model is related to a kind of audio amplifier, especially a kind of audio amplifier of built-in sound-absorbing material, including casing, installed in the bass unit and voice unit of the casing, the box house is respectively arranged with the cavity with the bass unit and voice unit cooperation, it is characterized in that, the bass unit cavity side and rear are provided with sound-absorbing material, and the voice unit cavity is provided with sound-absorbing material.The utility model is by internally setting sound-absorbing material, absorb repercussions inside audio amplifier, standing wave is avoided to have an impact sound, there is sound dye, reduce the impact of sound wave that phonation unit back is sent to casing, avoid casing from shaking, reduce influence of the bass unit to voice unit, the tonequality of guarantee phonation unit output, good tone color, audio experience are good.
Description
Technical field
A kind of audio amplifier is the utility model is related to, especially a kind of audio amplifier of built-in sound-absorbing material.
Background technology
Audio amplifier generally includes casing and the phonation unit being arranged on casing., can be simultaneously to just when phonation unit works
Face and reverse side send sound wave, and because phonation unit is arranged in audio amplifier, front sound wave is sent forward, and reverse side sound wave is towards closing
Audio amplifier inner space is sent, and after the reflection of boxboard, is converged in the middle part of casing, respectively by left and right, upper and lower or front and rear right
The sound wave of title face reflection is overlapped mutually production standing wave, causes sound resonance, sound dye, tonequality ambiguous occur.These standing waves one
Part can be absorbed by casing, and another part forms repercussions in box house, and repercussions eliminate slowly, can be cumulative, when repercussions are strong
When degree reaches certain value, phonation unit running interfering with, voice coil loudspeaker voice coil is promoted, sends hum, repercussions will be consumed immediately, then
Secondary accumulation, until sending hum again.And in bass unit, casing can follow bass unit to shake, its phase and bass
Unit occurs on the contrary, the low-frequency sound wave that bass unit is sent can be caused to be shaken the situation that the low-frequency sound wave sent weakens by casing,
The low frequency behavior of audio amplifier is had a strong impact on, while the vibrations of casing can also have an impact to middle pitch, voice unit.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of effectively absorption standing wave, repercussions, reduces low-frequency sound wave
The audio amplifier influenceed on audio amplifier.
To achieve these goals, the utility model adopts the following technical scheme that：
A kind of audio amplifier of built-in sound-absorbing material, including casing, bass unit and voice unit installed in the casing, institute
State box house and be respectively arranged with the cavity coordinated with the bass unit and voice unit, it is characterised in that the bass list
First cavity and voice unit cavity is separated by upper partition, and the bass unit cavity side and rear are provided with sound absorber
Material, the voice unit cavity are provided with sound-absorbing material, and the audio amplifier also includes phase-reversing tube, the phase-reversing tube and the bass list
The connection of first cavity, the bass unit cavity are provided with the lower partition with through hole, the lower partition by the phase-reversing tube with
Bass unit separates.
Preferably, the sound-absorbing material is arranged on the voice unit cavity surrounding.
Preferably, the sound-absorbing material is completely filled with the voice unit cavity.
Preferably, it is provided with sound-absorbing material in the middle part of the voice unit cavity.
Preferably, the sound-absorbing material is acoustical cotton.
Beneficial effect：The utility model absorbs repercussions inside audio amplifier, avoids standing wave pair by internally setting sound-absorbing material
Sound has an impact, and sound dye occurs, reduces the impact of sound wave that phonation unit back is sent to casing, avoids casing from shaking,
Influence of the reduction bass unit to middle pitch, voice unit, the tonequality of guarantee phonation unit output, good tone color, audio experience are good.
Brief description of the drawings
Fig. 1 is the stereogram of the utility model embodiment；
Fig. 2 is the front view of the utility model embodiment；
Fig. 3 is the right view of the utility model embodiment
Fig. 4 is the Section A-A sectional view of the front view of the utility model embodiment；
Fig. 5 is the section B-B sectional view of the right view of the utility model embodiment.
Wherein, in figure marked as：1 casing, 2 voice units, 3 bass units, 4 phase-reversing tubes, 5 upper partitions, 51, high pitch list
First cavity, 52, high pitch acoustical cotton, 6 lower partitions, 61 bass unit cavitys, 62 bass acoustical cottons, 7 through holes.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, clear and definite, develop simultaneously implementation referring to the drawings
The utility model is further described example.
Such as Fig. 1-5, a kind of audio amplifier of built-in sound-absorbing material disclosed in the present embodiment, (voice unit 2 and low is had been omitted from figure
The loadspeaker structure of sound unit 3), including casing 1, the front end face of casing 1 be from top to bottom disposed with voice unit 2, bass
Unit 3 and phase-reversing tube 4, the casing 1 is hollow, and by upper partition 5 by the inner space of casing 1 be separated into respectively with voice unit
2 and bass unit 3 the voice unit cavity 51 and bass unit cavity 61 that coordinate, phase-reversing tube 4 connects with bass unit cavity 61,
The lower partition 6 with through hole 7 is additionally provided with inside bass unit cavity 61, is consolidated with destroying interior parallel face and improving casing
Property, and through hole 9 then ensures that phase-reversing tube 4 communicates with bass unit 3.When audio amplifier is run, the phase-reversing tube 4 can carry on the back bass unit 3
The sound wave that face is sent is delivered to the front of bass unit 3, is superimposed with the front sound wave of the bass unit 3, to reach reinforcement sound wave
Effect.
Influenceed to eliminate standing wave, absorb repercussions, and avoid the sounding of voice unit 2 from being caused case by the sounding of bass unit 3
The interference that body 1 shakes, voice unit cavity 51 is interior to be filled with high pitch acoustical cotton 52, is produced with absorbing the inside of voice unit cavity 51
Repercussions, reduce the reflection of repercussions, avoid being disturbed by reflection sound wave, prevent audio distortions, improve the degree of purity of sound.Another
In individual embodiment, the high pitch acoustical cotton 52 is arranged on the surrounding of voice unit cavity 51.In another embodiment, high pitch acoustical cotton
52 are arranged on the middle part of voice unit cavity 51.
In order to overcome low frequency signal caused by casing, weaken the impact of sound wave that the back of bass unit 3 is sent to casing 1,
Casing 1 is avoided to shake, the bass unit cavity 61 above lower partition 6 sets bass acoustical cotton 62.Bass acoustical cotton 62 can
With the L-shaped acoustical cotton in the side being integrated, or by two or more acoustical cotton blocks to be arranged on the bass unit
The side of cavity 61 and below.The bass acoustical cotton 62 is arranged on the side of the bass unit cavity 61, can be that left side can also
It is right side.The reason for side is placed is that the sound wave of reflection can be passed by through hole 7 in order to which the opposite side of casing 1 can reflect sound wave
Phase-reversing tube 4 is delivered to, and is radiated the front of bass unit 3, to its humidification of front sound wave；Also avoid inside internal box 1 simultaneously
Damp excessive, absorption is crossed to sound wave.
It should be appreciated that high pitch acoustical cotton recited above, bass acoustical cotton, have no the difference on essential meaning, are simply
Convenience description and understand, the restriction on made common meaning.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure made using the utility model specification and accompanying drawing content or equivalent flow conversion, or directly or indirectly fortune
Used in other related technical areas, similarly it is included in scope of patent protection of the present utility model.
Claims (5)
1. a kind of audio amplifier of built-in sound-absorbing material, including casing (1), bass unit (3) and high pitch installed in the casing (1)
Unit (2), the internal cavity being respectively arranged with the bass unit (3) and voice unit (2) cooperation of the casing (1), its
It is characterised by, the bass unit cavity (61) and voice unit cavity (51) are separated by upper partition (5), the bass list
First cavity (61) side and rear are provided with sound-absorbing material, and the voice unit cavity (51) is provided with sound-absorbing material, the sound
Case also includes phase-reversing tube (4), and the phase-reversing tube (4) connects with the bass unit cavity (61), the bass unit cavity
(61) it is provided with the lower partition (6) with through hole (7), the lower partition (6) is by the phase-reversing tube (4) and bass unit (3)
Separate.
2. the audio amplifier of built-in sound-absorbing material as claimed in claim 1, it is characterised in that the sound-absorbing material is arranged on the height
Sound unit cavity (51) surrounding.
3. the audio amplifier of built-in sound-absorbing material as claimed in claim 1, it is characterised in that the sound-absorbing material is completely filled with described
Voice unit cavity (51).
4. the audio amplifier of built-in sound-absorbing material as claimed in claim 1, it is characterised in that in the middle part of the voice unit cavity (51)
It is provided with sound-absorbing material.
5. the audio amplifier of the built-in sound-absorbing material as described in claim 1-4 any one, it is characterised in that the sound-absorbing material is
Acoustical cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720707677.8U CN207135255U (en) | 2017-06-16 | 2017-06-16 | A kind of audio amplifier of built-in sound-absorbing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720707677.8U CN207135255U (en) | 2017-06-16 | 2017-06-16 | A kind of audio amplifier of built-in sound-absorbing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207135255U true CN207135255U (en) | 2018-03-23 |
Family
ID=61632111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720707677.8U Expired - Fee Related CN207135255U (en) | 2017-06-16 | 2017-06-16 | A kind of audio amplifier of built-in sound-absorbing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207135255U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810731A (en) * | 2018-09-04 | 2018-11-13 | 东莞市艺速电子科技有限公司 | Hi-Fi active audio amplifiers |
| CN109587587A (en) * | 2019-01-25 | 2019-04-05 | 先歌音响（吉安）有限公司 | A kind of speaker using aerodynamic principle |
| CN110677749A (en) * | 2019-09-25 | 2020-01-10 | 舒榻（厦门）智能科技有限公司 | Wireless stereo set that charges |
-
2017
- 2017-06-16 CN CN201720707677.8U patent/CN207135255U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810731A (en) * | 2018-09-04 | 2018-11-13 | 东莞市艺速电子科技有限公司 | Hi-Fi active audio amplifiers |
| CN109587587A (en) * | 2019-01-25 | 2019-04-05 | 先歌音响（吉安）有限公司 | A kind of speaker using aerodynamic principle |
| CN110677749A (en) * | 2019-09-25 | 2020-01-10 | 舒榻（厦门）智能科技有限公司 | Wireless stereo set that charges |
| CN110677749B (en) * | 2019-09-25 | 2020-10-13 | 舒榻（厦门）智能科技有限公司 | Wireless stereo set that charges |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207135255U (en) | A kind of audio amplifier of built-in sound-absorbing material | |
| CN206433160U (en) | Loudspeaker enclosure | |
| CN205356673U (en) | Loudspeaker module group | |
| CN205232448U (en) | Loudspeaker module group | |
| US20180035199A1 (en) | Loudspeaker module and electronic product | |
| CN104811873A (en) | Sound production device | |
| CN204795558U (en) | Audio amplifier is with passive low frequency radiation | |
| CN104320601B (en) | A kind of flat panel TV | |
| JP3204067U (en) | Speaker system | |
| CN104811848B (en) | Sound production device | |
| CN204291341U (en) | Sound-producing device | |
| CN109246537A (en) | A kind of speaker with shock-absorbing function | |
| CN205987287U (en) | Novel operatic tunes structure earphone | |
| CN102843624B (en) | Loudspeaker box structure with loading hole | |
| CN206963065U (en) | Loudspeaker module and terminal device | |
| CN104113796B (en) | Passive radiant type improved structure of loudspeaker | |
| CN204291340U (en) | Sound-producing device | |
| CN205336515U (en) | Integral type audio amplifier | |
| CN108449669A (en) | A kind of anti-falling type speaker | |
| CN201004710Y (en) | Low sound enhanced sound box for TV | |
| CN207939682U (en) | The acoustic assembly and intelligent sound box of intelligent sound box | |
| CN205847589U (en) | A kind of thin type horn structure | |
| CN205847590U (en) | A kind of single magnetic coaxial horn structure | |
| CN201674644U (en) | Closed helium-filled sound box | |
| CN206596176U (en) | A kind of earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20210616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |