CN103475989A - Silencing box for test speaker - Google Patents
Silencing box for test speaker Download PDFInfo
- Publication number
- CN103475989A CN103475989A CN201310379782XA CN201310379782A CN103475989A CN 103475989 A CN103475989 A CN 103475989A CN 201310379782X A CN201310379782X A CN 201310379782XA CN 201310379782 A CN201310379782 A CN 201310379782A CN 103475989 A CN103475989 A CN 103475989A
- Authority
- CN
- China
- Prior art keywords
- sound
- test
- wall body
- test horn
- horn
- 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.)
- Pending
Links
Images
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a silencing box for a test speaker. The silencing box comprises a box body, a plurality of sound absorption elements in the box body and a microphone, wherein the box body comprises a smooth wall body with an opening, the test speaker is matched and connected with the opening, a front sound cavity of the test speaker is positioned on the inner side of the smooth wall body, a rear sound cavity of the test speaker is positioned on the outer side of the smooth wall body, and the inner surface of the wall body is set to be a smooth surface. The smooth surface can play the role of a baffle plate and isolate the front and the rear sound cavity of the test speaker to avoid the sound pressure produced by the front and the rear sound cavity of the test speaker, so that the silencing box for the test speaker has the advantages of good test effect, low manufacturing cost, small occupied space and the like.
Description
Technical field
The present invention relates to a kind of Sound Attenuator, relate in particular to the Sound Attenuator that a kind of test horn is used.
Background technology
When the test horn acoustic characteristic, need sound chamber, isolation loudspeaker front and back, cause the error of test with the acoustic pressure phase mutual interference of avoiding sound chamber, loudspeaker front and back to produce.Wherein, acoustic pressure is exactly the be disturbed variation of rear generation of atmospheric pressure, is the overbottom pressure of atmospheric pressure, and it is equivalent to the pressure change that the disturbance of stack on atmospheric pressure causes.Comparatively accurate for the test data that makes the loudspeaker acoustic characteristic, carry out so this class testing is generally the inside, anechoic chamber larger in volume ratio, and a baffle need to be set in anechoic chamber.The two sides, front and back of this baffle is shiny surface, also is provided with hole on this baffle.During test, loudspeaker are placed on the hole of this baffle, make the sound chamber, front and back of loudspeaker be isolated by baffle.But the anechoic chamber that this volume is larger also has some limitations, such as cost is high, the shortcoming such as take up room large, so just caused many units to be equipped with.
Summary of the invention
The object of the invention is to, for above-mentioned defect of the prior art, provides a kind of low cost of manufacture, occupies little space, and has the Sound Attenuator of better test effect.
For achieving the above object, the present invention has adopted following technical scheme: the Sound Attenuator that a kind of test horn is used, it comprises casing, is arranged on a plurality of sound-absorbing elements and microphone in described casing, it is characterized in that: described casing comprises a smooth wall body with opening, matched and front sound chamber test horn of described test horn and described opening be positioned at smooth wall body inboard and thereafter the sound chamber be positioned at the outside of smooth wall body, the inner surface of described wall body is arranged to shiny surface.
In addition, the present invention also provides following attached technical scheme:
The Sound Attenuator that described test horn is used also comprises and supports the bracing frame that test horn is used, support frame as described above be arranged on described opening around.
The roof that described smooth wall body is described casing.
Described sound-absorbing element the best is the sound-absorbing wedge.
The Sound Attenuator that described test horn is used also comprises the microphone stand be arranged in described casing, and described microphone is connected with described microphone stand.
Described microphone is aimed in the front sound chamber of described test horn.
The inner surface of other wall bodies of described casing evenly is equipped with sound-absorbing element.
Than prior art, advantage of the present invention is: the casing of the Sound Attenuator that this test horn is used comprises a smooth wall body with opening, matched and front sound chamber test horn of test horn and opening be positioned at smooth wall body inboard and thereafter the sound chamber be positioned at the outside of smooth wall body, the inner surface of wall body is arranged to shiny surface.Shiny surface plays the effect of baffle, the sound chamber, front and back that has isolated test horn, avoid the test error caused due to acoustic pressure phase mutual interference that sound chamber before and after test horn produces, as can be seen here, the Sound Attenuator that this test horn is used is when having better test effect, have low cost of manufacture concurrently, the advantage such as occupy little space.
The accompanying drawing explanation
The stereogram of the Sound Attenuator that Fig. 1 uses corresponding to the test horn of preferred embodiment of the present invention.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is the cut-away view of Fig. 1.
Embodiment
Below in conjunction with preferred embodiment and accompanying drawing thereof, technical solution of the present invention is further non-limitingly described in detail.
Referring to figs. 1 through Fig. 3, the Sound Attenuator of using corresponding to the test horn of preferred embodiment of the present invention, it is mainly used in the test horn acoustic characteristic.This Sound Attenuator comprises casing 1, opening 7 and supports the bracing frame 4 that the test horn (not shown) is used.Wherein, opening 7 is arranged on the smooth wall body 17 of casing 1, itself and test horn matched and make the front sound chamber of test horn be positioned at smooth wall body 17 inboard and thereafter the sound chamber be positioned at the outside of smooth wall body 17.Corresponding to preferred embodiment of the present invention, the roof 17 that this smooth wall body 17 is casing 1, and its inner surface is set to shiny surface, this roof 17 is equivalent to the baffle that is positioned at inside, anechoic chamber of the prior art like this, the acoustic pressure can the forward and backward sound of isolation test loudspeaker chamber produced, cause the error of test with sound chamber phase mutual interference before and after avoiding.Bracing frame 4 is arranged on the roof 17 of casing 1 equally, and its quantity is three, is arranged on respectively on 3 sides of opening 7, for supporting test horn.
The inside of above-mentioned casing 1 is hollow form.On the inner surface of removing other each wall bodies 20 outside roof 17, sound-absorbing element 9 evenly is installed, it mainly plays the effect that absorbs noise.The optimal selection of sound-absorbing element 9 is sound-absorbing wedge 9, and sound-absorbing wedge 9 all is covered with each wall body 20, and 20 of some wall bodies of Fig. 2 and Fig. 3 have provided a sound-absorbing wedge 9, and main purpose is outstanding sound-absorbing wedge 9 and the effect of illustrating for simplicity.The Sound Attenuator that this test horn is used also comprises microphone 12 and the microphone stand 13 be arranged in casing 1, wherein an end of microphone stand 13 is fixedly connected with casing 1, its other end is connected with microphone 12, and microphone 12 is mainly used in the test horn acoustic characteristic.
During test horn, the front sound chamber of loudspeaker (not shown) is faced to microphone 12, and expose outside casing 1 in the sound chamber thereafter, last loudspeaker are fixed by bracing frame 4 and are started and test.Because the inner surface of the roof 17 at opening 7 places is shiny surface, played the effect of baffle, isolated the sound chamber, front and back of loudspeaker, avoid causing due to the phase mutual interference between sound chamber, front and back the error of test.Like this, than prior art, the Sound Attenuator that test horn of the present invention is used, when thering is better test effect, need to baffle be installed at its box house, also without whole test horn is arranged on the baffle of box house, thereby reduce the whole shared spatial volume of this Sound Attenuator, saved manufacturing cost.
It is pointed out that above-mentioned preferred embodiment is only explanation technical conceive of the present invention and characteristics, its purpose is to allow the person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. the Sound Attenuator that test horn is used, it comprises casing, is arranged on a plurality of sound-absorbing elements and microphone in described casing, it is characterized in that: described casing comprises a smooth wall body with opening, matched and front sound chamber test horn of described test horn and described opening be positioned at smooth wall body inboard and thereafter the sound chamber be positioned at the outside of smooth wall body, the inner surface of described wall body is arranged to shiny surface.
2. the Sound Attenuator that test horn is used according to claim 1, is characterized in that it also comprises to support the bracing frame that test horn is used, support frame as described above be arranged on described opening around.
3. the Sound Attenuator that test horn is used according to claim 1 is characterized in that: the roof that described smooth wall body is described casing.
4. the Sound Attenuator that test horn is used according to claim 1 is characterized in that: described sound-absorbing element is best is the sound-absorbing wedge.
5. the Sound Attenuator that test horn is used according to claim 1, is characterized in that it also comprises the microphone stand be arranged in described casing, and described microphone is connected with described microphone stand.
6. the Sound Attenuator that test horn according to claim 1 is used is characterized in that: described microphone is aimed in the front sound chamber of described test horn.
7. the Sound Attenuator that test horn according to claim 1 is used is characterized in that: the inner surface of other wall bodies of described casing evenly is equipped with sound-absorbing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310379782XA CN103475989A (en) | 2013-08-28 | 2013-08-28 | Silencing box for test speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310379782XA CN103475989A (en) | 2013-08-28 | 2013-08-28 | Silencing box for test speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103475989A true CN103475989A (en) | 2013-12-25 |
Family
ID=49800658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310379782XA Pending CN103475989A (en) | 2013-08-28 | 2013-08-28 | Silencing box for test speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103475989A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053113A (en) * | 2014-06-28 | 2014-09-17 | 歌尔声学股份有限公司 | Sound reducing enclosure |
| CN106488376A (en) * | 2016-10-28 | 2017-03-08 | 努比亚技术有限公司 | The method and apparatus that a kind of audio components to mobile terminal carry out fault diagnosis |
| CN106817662A (en) * | 2015-11-27 | 2017-06-09 | 名硕电脑(苏州)有限公司 | Audio test system |
| CN106964449A (en) * | 2017-04-27 | 2017-07-21 | 安徽庆睿实业有限责任公司 | It is a kind of to handle official business with the small intelligent paper shredder of noise |
| CN107734439A (en) * | 2017-11-25 | 2018-02-23 | 苏州岸肯电子科技有限公司 | A kind of multistation baffle for loudspeaker abnormal sound test machine |
| CN107734441A (en) * | 2017-11-25 | 2018-02-23 | 苏州岸肯电子科技有限公司 | A kind of adjustable baffle for loudspeaker abnormal sound test machine |
| CN107820190A (en) * | 2017-11-25 | 2018-03-20 | 苏州岸肯电子科技有限公司 | A kind of loudspeaker abnormal sound automatic test machine |
| CN108933986A (en) * | 2017-05-27 | 2018-12-04 | 苏州岸肯电子科技有限公司 | Producing line tests silencer box with loudspeaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070286441A1 (en) * | 2006-06-12 | 2007-12-13 | Phonak Ag | Method for monitoring a hearing device and hearing device with self-monitoring function |
| CN201167417Y (en) * | 2008-02-28 | 2008-12-17 | 比亚迪股份有限公司 | Apparatus for testing uni-directional microphone |
| CN201438762U (en) * | 2009-04-15 | 2010-04-14 | 天津科技大学 | Sound attenuating chamber for loudspeaker pure tone online detection |
| CN203399289U (en) * | 2013-08-28 | 2014-01-15 | 苏州岸肯电子科技有限公司 | Sound attenuating box for test loudspeaker |
-
2013
- 2013-08-28 CN CN201310379782XA patent/CN103475989A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070286441A1 (en) * | 2006-06-12 | 2007-12-13 | Phonak Ag | Method for monitoring a hearing device and hearing device with self-monitoring function |
| CN201167417Y (en) * | 2008-02-28 | 2008-12-17 | 比亚迪股份有限公司 | Apparatus for testing uni-directional microphone |
| CN201438762U (en) * | 2009-04-15 | 2010-04-14 | 天津科技大学 | Sound attenuating chamber for loudspeaker pure tone online detection |
| CN203399289U (en) * | 2013-08-28 | 2014-01-15 | 苏州岸肯电子科技有限公司 | Sound attenuating box for test loudspeaker |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053113A (en) * | 2014-06-28 | 2014-09-17 | 歌尔声学股份有限公司 | Sound reducing enclosure |
| CN106817662A (en) * | 2015-11-27 | 2017-06-09 | 名硕电脑(苏州)有限公司 | Audio test system |
| CN106817662B (en) * | 2015-11-27 | 2019-07-30 | 名硕电脑(苏州)有限公司 | Audio test system |
| CN106488376A (en) * | 2016-10-28 | 2017-03-08 | 努比亚技术有限公司 | The method and apparatus that a kind of audio components to mobile terminal carry out fault diagnosis |
| CN106488376B (en) * | 2016-10-28 | 2020-03-27 | 努比亚技术有限公司 | Method and device for carrying out fault diagnosis on audio element of mobile terminal |
| CN106964449A (en) * | 2017-04-27 | 2017-07-21 | 安徽庆睿实业有限责任公司 | It is a kind of to handle official business with the small intelligent paper shredder of noise |
| CN108933986A (en) * | 2017-05-27 | 2018-12-04 | 苏州岸肯电子科技有限公司 | Producing line tests silencer box with loudspeaker |
| CN107734439A (en) * | 2017-11-25 | 2018-02-23 | 苏州岸肯电子科技有限公司 | A kind of multistation baffle for loudspeaker abnormal sound test machine |
| CN107734441A (en) * | 2017-11-25 | 2018-02-23 | 苏州岸肯电子科技有限公司 | A kind of adjustable baffle for loudspeaker abnormal sound test machine |
| CN107820190A (en) * | 2017-11-25 | 2018-03-20 | 苏州岸肯电子科技有限公司 | A kind of loudspeaker abnormal sound automatic test machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103475989A (en) | Silencing box for test speaker | |
| WO2020077782A1 (en) | Mobile terminal device | |
| JP2015527851A (en) | Noise reduction microphone accessory | |
| CN104185123A (en) | Sound production component of headphone or loudspeaker box | |
| CN202873055U (en) | Portable equipment loudspeaker | |
| CN203399289U (en) | Sound attenuating box for test loudspeaker | |
| CN103474057A (en) | Silencing chamber | |
| CN106101940B (en) | A kind of integrated digital car audio system | |
| CN104457970B (en) | A kind of half silencer box of broadband measurement | |
| CN204616051U (en) | Loud speaker module | |
| CN103269468B (en) | Horn-type multipoint excitation speaker box | |
| CN204518007U (en) | The pronunciation device of a kind of headphone or audio amplifier | |
| CN203734819U (en) | Spherically symmetrical push-pull type ultra-high-fidelity sound box | |
| CN204929201U (en) | Sounding device | |
| CN207410526U (en) | A kind of English teaching public address set | |
| CN101707731B (en) | Array transmission line active vehicle-mounted sound system | |
| CN204316705U (en) | Earphone | |
| CN213368126U (en) | Sound box and electronic equipment | |
| CN201426163Y (en) | Reverse-direction coaxial telephone receiver earphone | |
| CN203734818U (en) | Horn-type point sound source sound box | |
| JP2015001643A (en) | Acoustic panel | |
| CN208174980U (en) | A kind of active noise reducing device based on loudspeaker array | |
| CN204104126U (en) | The pronunciation component of a kind of headphone or audio amplifier | |
| CN205883537U (en) | Bipartition is linear array audio amplifier frequently | |
| CN204350232U (en) | A kind of shockproof anti-interference audio amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |
|
| WD01 | Invention patent application deemed withdrawn after publication |