CN203482393U - Audio frequency curve testing sound box - Google Patents
Audio frequency curve testing sound box Download PDFInfo
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- CN203482393U CN203482393U CN201320522897.5U CN201320522897U CN203482393U CN 203482393 U CN203482393 U CN 203482393U CN 201320522897 U CN201320522897 U CN 201320522897U CN 203482393 U CN203482393 U CN 203482393U
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Abstract
The utility model discloses an audio frequency curve testing sound box. The audio frequency curve testing sound box includes a box body, and an upper cover, wherein the box body has two layers, a first sound absorption cotton is filled between an internal shell of the box body and an external shell of the box body, and a second sound absorption cotton is arranged on an internal wall of the internal shell of the box body. The audio frequency curve testing sound box takes shockproof performance, sound absorption performance and sound isolation performance into careful consideration, so that a more real 'free filed' is provided for testing of corresponding electroacoustic products compared with other products, shockproof performance of the entire box and shockproof performances of individual parts are enhanced, and testing box cost is reduced while testing requirements are fulfilled.
Description
Technical field
The utility model relates to sound-box device technical field, relates in particular to a kind of audio curve test audio amplifier.
Background technology
At present, electro-acoustic element is that reception, record, processing, repeating transmission and the measuring technique of electroacoustic transduction and acoustical signal must obligato device, in video display, broadcast, public address and military field, has a wide range of applications.In the information age of high speed development, audio-visual products occupies an important position, and therefore, it is subject to consumers in general and various circles of society more and more pay close attention to.
China's electroacoustic industry has kept fast-developing situation since the eighties in 20th century always, and research and development have also progressively been grasped the multinomial production technology from electroacoustic components and parts to terminal electro-acoustic product voluntarily, have formed comparatively complete electroacoustic industrial system and related industry chain." 15 ", the Eleventh Five-Year Plan period, are accompanied by the fast development worldwide of mobile communication equipment and automobile industry, and electro-acoustic product is developed rapidly in China.
Along with the surge of electro-acoustic product output, how fast, truly, effectively measure the performance parameter of each product, and reasonably comprehensive analysis of carrying out becomes particularly important.Audio curve test audio amplifier is generally single layer structure design, inner acoustical cotton is filled, Mike's support be connected with base adjustable direction with apart from the distance of product, partial test audio amplifier adopts the casing of the regular shapes such as cube, listen sound baffle directly to contact with electro-acoustic product, thereby simulate corresponding " free field ".The shortcoming of single layer structure design: volume is large, expensive price, acoustic insulation shock-proof be undesirable, listen rigid contact of sound baffle and product easily to produce resonance, affects test result etc.Therefore, need a kind of novel audio curve test audio amplifier.
Utility model content
In view of this, a technical problem to be solved in the utility model is to provide a kind of audio curve test audio amplifier, and the casing of audio amplifier is double-layer box body.
An audio curve test audio amplifier, comprises casing and upper cover, and described casing is double-layer box body, comprising: inner shell of a box body and cabinet shell; Between described inner shell of a box body and described cabinet shell, fill the first acoustical cotton, the second acoustical cotton is set on the inwall of described inner shell of a box body.
According to an embodiment of the present utility model, further, in described cabinet shell bottom, support wheel is set, the material of described support wheel is rubber.
According to an embodiment of the present utility model, further, at the top of described upper cover, audition dividing plate is set, on described audition dividing plate, shock ring is set; Wherein, the material of described shock ring is polyurethane.
According to an embodiment of the present utility model, further, between described inner shell of a box body and described cabinet shell, support column is set; The two ends of described support column are fixedly connected with described cabinet shell with described inner shell of a box body respectively; The material of described support column is polyurethane.
According to an embodiment of the present utility model, further, a plurality of through holes are set on described inner shell of a box body, the diameter of described through hole is 1-5mm.
According to an embodiment of the present utility model, further, in described inner shell of a box body, microphone holder is set, one end of described microphone holder is fixedly connected on the inwall of described inner shell of a box body.
According to an embodiment of the present utility model, further, the material of described microphone holder is stainless steel.
According to an embodiment of the present utility model, further, the thickness of described cabinet shell and described inner shell of a box body is all greater than 25mm.
According to an embodiment of the present utility model, further, the thickness of described upper cover is 30-40mm.
According to an embodiment of the present utility model, further, the thickness of described the second acoustical cotton is greater than 10 centimetres, and the density of described the second acoustical cotton is greater than 40kg/m3.
Audio curve test audio amplifier of the present utility model, from shock resistance, sound-absorbing and sound-proofing aspect, done comparatively meticulous consideration, compare the test that can be corresponding electro-acoustic product with other products more real " free field " is provided, can simulate the space that is more comparable to free field, when meeting test request, reduce test box cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1A and 1B are the schematic diagram of an embodiment of audio curve test audio amplifier of the present utility model; Wherein, Figure 1A is the composition schematic diagram of audio curve test audio amplifier, and Figure 1B is the stereogram of audio curve test audio amplifier;
Fig. 2 is a schematic diagram of the inner shell of a box body wall of audio curve test audio amplifier.
Embodiment
With reference to the accompanying drawings the utility model is described more fully, exemplary embodiment of the present utility model is wherein described.Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with figure and embodiment, the technical solution of the utility model is carried out to many-sided description.
As shown in Figure 1A and 1B, audio curve test tone case comprises casing and upper cover 2, and casing is double-layer box body, comprising: inner shell of a box body 9 and cabinet shell 5.Between inner shell of a box body 9 and cabinet shell 5, fill the first acoustical cotton 4, the second acoustical cotton 6 is set on the inwall of inner shell of a box body 9.Between inside and outside shell, all Sound-proof material or the acoustical cotton by high-quality filled, and effectively prevents the interference of external sound.
Form between inner shell of a box body 9 and the box body wall of cabinet shell 5, every 10cm, with wood screw, connect, and glued joint at all seam crossings, the connection between box body wall goes out to adopt wedge shape to connect increase splicing area, thereby increases steadiness and the shock resistance of casing.
Inner shell of a box body 9 and cabinet shell 5 adopt non-parallel cabinet design, and high attenuation standing wave also makes mechanical shock greatly weaken simultaneously greatly, and the angle of inclination of the sidewall of inner shell of a box body 9 and cabinet shell 5 is 10 ° ~ 15 °.
According to an embodiment of the present utility model, in cabinet shell 5 bottoms, support wheel 7 is set, the material of support wheel 7 is rubber, strengthens shockproof effect.
At the top of upper cover 2, audition dividing plate 11 is set, shock ring 1 is set on audition dividing plate 11, can be arranged on audition dividing plate 11 surfaces, or in the groove arranging on audition dividing plate 11; Shock ring 1 can be fixedly connected with audition dividing plate 11, also can only be placed on above.
The material of shock ring 1 is the soft materials such as polyurethane.Adopt soft material and the electro-acoustic product flexible contacts such as polyurethane, can avoid damaging product surface and can reach again the effect that effect prevents from shaking sounding impact test.By changing different polyurethane shock rings, test different products, needn't change the whole sound baffle of listening, can reduce testing cost.
According to an embodiment of the present utility model, between inner shell of a box body 9 and cabinet shell 5, support column 8 is set, can only in bottom, arrange, also can arrange in surrounding.The two ends of support column 8 are fixedly connected with cabinet shell 5 with inner shell of a box body 9 respectively.
The material of support column 8 is polyurethane etc.Adopt polyurethane support column 8, as the support of inside and outside shell bottom, the characteristic of polyurethane can fully reach stablizes shockproof effect.
According to an embodiment of the present utility model, a plurality of through holes are set on inner shell of a box body 9, the diameter of through hole is 1-5mm.The aperture that has queueing discipline on inner shell of a box body 9, can effectively reduce the reflection of internal sound.
According to an embodiment of the present utility model, microphone holder 10 is set in inner shell of a box body 9, one end of microphone holder 10 is fixedly connected on the inwall of inner shell of a box body 9.The material of microphone 10 supports is stainless steel.The design of cantilever type microphone holder 10, effectively prevents the impact that earth shock produces Mike.
According to an embodiment of the present utility model, the thickness of cabinet shell 9 and inner shell of a box body 5 is all greater than 25mm.The thickness of upper cover 2 is 30-40mm.Upper cover 2, cabinet shell 9 and inner shell of a box body 5 all select thickness to be greater than fiber board or the solid wood board of 25mm.
The shape of the second acoustical cotton 6 should have significantly concavo-convex, and the thickness of the second acoustical cotton 6 is greater than 10CM, and the density of the second acoustical cotton 6 is greater than 40kg/m3.The material of the first acoustical cotton 4 can be polyester fiber, and acoustic absorptivity need reach NRC=0.76(GB 47-83).Audio amplifier inside and intermediate course adopt two kinds of different acoustical cottons to fill, and two kinds of acoustical cottons coordinate can effectively reduce importing into of inner sound wave reflection and external noise.
Audio curve of the present utility model test audio amplifier, has done comparatively meticulous consideration from shock resistance, sound-absorbing and sound-proofing aspect, compares the test that can be corresponding electro-acoustic product more real " free field " is provided with other products.
According to an embodiment of the present utility model, the high 700mm of 850mm x 850mm bottom, FCL size top 600mm x 600mm, when external environment is made an uproar sound≤90dB, the background of this audio curve test audio amplifier sound≤30dB that makes an uproar.
Audio curve of the present utility model is tested audio amplifier, can promote the vibration resistance of FCL and particular, can simulate the space that is more comparable to free field, reduces test box cost when meeting test request.
" first " in the utility model, " second " etc. are distinguished on describing, not other special implication." ”,“ lower end, top " in the utility model etc. is the orientation in accompanying drawing.
Loud speaker pad of the present utility model limit erecting device, can enhance productivity, and Improving The Quality of Products, has cleaned operational environment, has strengthened company's market competition vigor.The smooth supporting success of this product, and profit is considerable.
Description of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the utility model design is suitable for special-purpose.
Claims (10)
1. an audio curve test audio amplifier, comprises casing and upper cover, it is characterized in that:
Described casing is double-layer box body, comprising: inner shell of a box body and cabinet shell; Between described inner shell of a box body and described cabinet shell, fill the first acoustical cotton, the second acoustical cotton is set on the inwall of described inner shell of a box body.
2. audio amplifier as claimed in claim 1, is characterized in that:
In described cabinet shell bottom, support wheel is set, the material of described support wheel is rubber.
3. audio amplifier as claimed in claim 1, is characterized in that:
At the top of described upper cover, audition dividing plate is set, on described audition dividing plate, shock ring is set;
Wherein, the material of described shock ring is polyurethane.
4. audio amplifier as claimed in claim 1, is characterized in that:
Between described inner shell of a box body and described cabinet shell, support column is set;
The two ends of described support column are fixedly connected with described cabinet shell with described inner shell of a box body respectively;
The material of described support column is polyurethane.
5. audio amplifier as claimed in claim 1, is characterized in that:
A plurality of through holes are set on described inner shell of a box body, and the diameter of described through hole is 1-5mm.
6. audio amplifier as claimed in claim 1, is characterized in that:
In described inner shell of a box body, microphone holder is set, one end of described microphone holder is fixedly connected on the inwall of described inner shell of a box body.
7. audio amplifier as claimed in claim 6, is characterized in that:
The material of described microphone holder is stainless steel.
8. audio amplifier as claimed in claim 1, is characterized in that:
The thickness of described cabinet shell and described inner shell of a box body is all greater than 25mm.
9. audio amplifier as claimed in claim 1, is characterized in that:
The thickness of described upper cover is 30-40mm.
10. audio amplifier as claimed in claim 1, is characterized in that:
The thickness of described the second acoustical cotton is greater than 10 centimetres, and the density of described the second acoustical cotton is greater than 40kg/m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522897.5U CN203482393U (en) | 2013-08-26 | 2013-08-26 | Audio frequency curve testing sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522897.5U CN203482393U (en) | 2013-08-26 | 2013-08-26 | Audio frequency curve testing sound box |
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| Publication Number | Publication Date |
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| CN203482393U true CN203482393U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320522897.5U Expired - Fee Related CN203482393U (en) | 2013-08-26 | 2013-08-26 | Audio frequency curve testing sound box |
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| CN (1) | CN203482393U (en) |
Cited By (4)
| 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 |
| 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 |
| CN109286887A (en) * | 2018-09-20 | 2019-01-29 | 苏州岸肯电子科技有限公司 | Silencer box is used in a kind of test of loudspeaker |
-
2013
- 2013-08-26 CN CN201320522897.5U patent/CN203482393U/en not_active Expired - Fee Related
Cited By (5)
| 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 |
| 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 |
| CN109286887A (en) * | 2018-09-20 | 2019-01-29 | 苏州岸肯电子科技有限公司 | Silencer box is used in a kind of test of loudspeaker |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JILIN HANGSHENG ELECTRONICS CO., LTD. Free format text: FORMER NAME: JILIN HANGSHENG HONGYU ELECTRON CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 132013 No. 3100, deep East Road, hi tech Zone, Jilin, Jilin Patentee after: JILIN HANGSHENG ELECTRONICS CO., LTD. Address before: 132013 No. 100, Shenzhen street, hi tech Zone, Jilin, Jilin Patentee before: Jilin Hangsheng Hongyu Electronics Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20190826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |