CN107328957A - A kind of silencing case - Google Patents
A kind of silencing case Download PDFInfo
- Publication number
- CN107328957A CN107328957A CN201710550176.8A CN201710550176A CN107328957A CN 107328957 A CN107328957 A CN 107328957A CN 201710550176 A CN201710550176 A CN 201710550176A CN 107328957 A CN107328957 A CN 107328957A
- Authority
- CN
- China
- Prior art keywords
- internal box
- thickness
- puigging
- sound absorbing
- absorbing layer
- 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
- 230000030279 gene silencing Effects 0.000 title claims abstract description 43
- 238000013016 damping Methods 0.000 claims abstract description 31
- 230000004308 accommodation Effects 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 36
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229920002522 Wood fibre Polymers 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000002955 isolation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention provides a kind of silencing case, the silencing case is provided with opening, including：One has the internal box of accommodation space and the outer case being fixedly connected with an internal box；The first puigging and the first damping layer are sequentially provided with from inside to outside between the internal box lateral wall and outer case madial wall；The madial wall of the internal box is provided with the first sound absorbing layer；The opening sequentially passes through outer case, the first damping layer, the first puigging, internal box and the first sound absorbing layer and accommodation space insertion；Soundproof door is provided with the opening.The noise that workshop condition is 60dBA can be reduced to below 35dBA by the silencing case of the present invention, to meet demand during micro motor noise testing to test environment.
Description
Technical field
The present invention relates to the facility technology field for weakening noise, more particularly to a kind of silencing case.
Background technology
General micro motor test will be tested under lower noise environment, and workshop producing line noise is all in more than 60dBA,
Limited by producing line space, common silencing case (length, width and height：1000mm × 1000mm × 1000mm) sound transmission loss only has 10dBA or so,
Noise is in 50dBA or so namely in case, and motor noise requires ≤45dBA, and test environment minimum requirements is than tester
The low 10dBA of part can just ensure that test result is accurate, that is, environmental noise Yaos ≤35dBA and just meets test request, therefore existing
Silencing case can not meet test request of the micro motor in workshop.
The content of the invention
The technical problems to be solved by the invention are：The present invention provides one kind and disclosure satisfy that micro motor is carried out in workshop
The silencing case of noise testing.
In order to solve the above-mentioned technical problem, the invention provides a kind of silencing case, the silencing case is provided with opening, bag
Include：One has the internal box of accommodation space and the outer case being fixedly connected with an internal box；
The first puigging and the first resistance are sequentially provided between the internal box lateral wall and outer case madial wall from inside to outside
Buddhist nun's layer；
The madial wall of the internal box is provided with the first sound absorbing layer；It is described opening sequentially pass through outer case, the first damping layer,
First puigging, internal box and the first sound absorbing layer and accommodation space insertion；Soundproof door is provided with the opening.
Beneficial effects of the present invention are：
Extraneous noise is passed sequentially through outer case, the first damping layer, the first puigging, internal box by the silencing case of the present invention
And sound absorbing layer, silencing case can be made in noise is 60dBA workshop conditions, it is miniature to meet by noise attentuation to below 35dBA
Motor is issued to test request in workshop condition, substantially reduces the ambient noise in silencing case；Simultaneously in the opening of silencing case
Place sets soundproof door, facilitates micro motor to test, while can be by most of isolation of noise in place of casing, it is ensured that micro motor
The normal operation of noise test；The present invention makes after micro motor production, can be tested at once in workshop, improve production
Efficiency.
Brief description of the drawings
Fig. 1 is a kind of diagrammatic cross-section of silencing case according to the embodiment of the present invention；
Fig. 2 is the silencing case structure chart according to the embodiment of the present invention；
Label declaration：
1st, internal box；2nd, outer case；3rd, the first puigging；4th, the first damping layer；5th, the first sound absorbing layer；6th, soundproof door.
Embodiment
To describe technology contents, the objects and the effects of the present invention in detail, below in conjunction with embodiment and coordinate attached
Figure is explained in detail.
The design of most critical of the present invention is：Silencing case includes internal box and the outer case being fixedly connected with internal box, institute
State and be sequentially provided with the first puigging and the first damping layer between internal box lateral wall and outer case madial wall from inside to outside；Internal box
Madial wall be provided with the first sound absorbing layer；
Fig. 1 to Fig. 2 is refer to, the invention provides a kind of silencing case, the silencing case is provided with opening, including：One tool
The outer case for having the internal box of accommodation space and being fixedly connected with an internal box；
The first puigging and the first resistance are sequentially provided between the internal box lateral wall and outer case madial wall from inside to outside
Buddhist nun's layer；
The madial wall of the internal box is provided with the first sound absorbing layer；It is described opening sequentially pass through outer case, the first damping layer,
First puigging, internal box and the first sound absorbing layer and accommodation space insertion；Soundproof door is provided with the opening.
Operation principle：Above-mentioned silencing case is placed in workshop, after the completion of being produced in micro motor, opens soundproof door,
In the accommodation space that micro motor is placed on to silencing case internal box, noise measuring is carried out after closing soundproof door, above-mentioned is Jing Yin
The noise that workshop condition is 60dBA can be reduced to below 35dBA by case, to meet during micro motor noise testing to test wrapper
The demand in border.
It was found from foregoing description, extraneous noise is passed sequentially through outer case, the first damping layer, the by silencing case of the invention
One puigging, internal box and sound absorbing layer, can make silencing case in noise is 60dBA workshop conditions, by noise attentuation to 35dBA
Hereinafter, test request is issued in workshop condition to meet micro motor, substantially reduces the ambient noise in silencing case；Simultaneously
At the opening of silencing case set soundproof door, facilitate micro motor to test, at the same can by most of isolation of noise casing it
Place, it is ensured that the normal operation of micro motor noise test；The present invention makes after micro motor production, can be carried out at once in workshop
Test, improves production efficiency.
Further, the length and width of the outer case and high respectively 1150mm, 1050mm and 950mm.
It was found from foregoing description, the outer case of above-mentioned size can make the external form size of silencing case be in optimal, Ji Nengman
The demand of sufficient micro motor test, can guarantee that and the convenience requirement that silencing case is put and carried is met in workshop again.
Further, the thickness of the outer case is 2mm, and the material of the outer case is stainless steel.
It was found from foregoing description, by the outer case of stainless steel, and its thickness is 2mm, can at least reduce 5dB's
Noise.
Further, the internal box is surrounded by multiple density boards, and the material of the density board is wood fibre；It is described
The thickness of density board is 5mm.
It was found from foregoing description, by said structure, it can at least reduce 5dB noise.
Further, the thickness of first puigging is 100mm；The material of first puigging is Sound-proof material.
It was found from foregoing description, by said structure, it can at least reduce 10dB noise.
Further, the thickness of first damping layer is 3mm；The material of first damping layer is damping material.
It was found from foregoing description, by said structure, it can at least reduce 5dB noise.
Further, the material of first sound absorbing layer is wave acoustical cotton, and the thickness of first sound absorbing layer is
100mm。
It was found from foregoing description, by said structure, it can at least reduce 10dB noise.
Further, the soundproof door includes door body；
The second damping layer, the second puigging, density board and the second sound absorbing layer are sequentially provided with the door body；
The door body is identical with the material of the outer case, thickness is equal；
Second damping layer is identical with the material of the first damping layer, thickness is equal；
Second puigging is identical with the material of the first puigging, thickness is equal；
The density board is identical with the material of the thickness of internal box, thickness is equal；
Second sound absorbing layer is identical with the material of the first sound absorbing layer, thickness is equal；
External environment condition and connecting inside internal box or closing can be realized by opening or closing the soundproof door.
It was found from foregoing description, while setting soundproof door at the opening of silencing case, micro motor is facilitated to test, while energy
Enough by most of isolation of noise in place of casing, it is ensured that the normal operation of micro motor noise test；The present invention makes micro motor
After production, it can be tested at once in workshop, improve production efficiency.
Fig. 1 to Fig. 2 is refer to, embodiments of the invention one are：
A kind of silencing case that the present invention is provided, the silencing case is provided with opening, including：One has the interior case of accommodation space
Body 1 and the outer case 2 being fixedly connected with an internal box 1；
The first puigging 3 and first is sequentially provided between the lateral wall of internal box 1 and the madial wall of outer case 2 from inside to outside
Damping layer 4；
The madial wall of the internal box 1 is provided with the first sound absorbing layer 5；The opening sequentially passes through the damping of outer case 2, first
The 4, first puigging 3 of layer, the sound absorbing layer 5 of internal box 1 and first and accommodation space insertion；Soundproof door 6 is provided with the opening；
The length and width of the outer case 2 and high respectively 1150mm, 1050mm and 950mm；The thickness of the outer case 2 is
2mm, the material of the outer case 2 is stainless steel；The internal box 1 is surrounded by multiple density boards, the material of the density board
For wood fibre；The thickness of the density board is 5mm；The thickness of first puigging 3 is 100mm；First puigging 3
Material be Sound-proof material；The thickness of first damping layer 4 is 3mm；The material of first damping layer 4 is damping material；Institute
The material for stating the first sound absorbing layer 5 is wave acoustical cotton, and the thickness of first sound absorbing layer 5 is 100mm.
It was found from foregoing description, by said structure, can by workshop condition for 60dBA noise be reduced to 35dBA with
Under, to meet demand during micro motor noise testing to test environment.
Embodiments of the invention two are：
The difference of embodiment two and embodiment one is that the soundproof door 6 includes door body；
The second damping layer, the second puigging, density board and the second sound absorbing layer are sequentially provided with the door body；The door body with
The material of the outer case 2 is identical, thickness is equal；Second damping layer is identical with the material of the first damping layer 4, thickness phase
Deng；Second puigging is identical with the material of the first puigging 3, thickness is equal；
The density board is identical with the material of the thickness of internal box 1, thickness is equal；Second sound absorbing layer and the first sound-absorbing
Layer 5 material is identical, thickness is equal；The company inside external environment condition and internal box 1 can be realized by opening or closing the soundproof door 6
Logical or closing.
In summary, extraneous noise is passed sequentially through outer case, the first damping layer, the first sound insulation by silencing case of the invention
Layer, internal box and sound absorbing layer, can make silencing case in noise is 60dBA workshop conditions, by noise attentuation to below 35dBA,
Test request is issued in workshop condition to meet micro motor, the ambient noise in silencing case is substantially reduced；Simultaneously quiet
Soundproof door is set at the opening of audio amplifier, facilitates micro motor to test, while can be protected by most of isolation of noise in place of casing
Demonstrate,prove the normal operation of micro motor noise test；The present invention makes after micro motor production, can be tested at once in workshop,
Improve production efficiency.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or other related technical fields are directly or indirectly used in, similarly
It is included within the scope of the present invention.
Claims (8)
1. a kind of silencing case, the silencing case is provided with opening, it is characterised in that including：One has the internal box of accommodation space
The outer case being fixedly connected with an internal box；
The first puigging and the first damping layer are sequentially provided with from inside to outside between the internal box lateral wall and outer case madial wall；
The madial wall of the internal box is provided with the first sound absorbing layer；The opening sequentially passes through outer case, the first damping layer, first
Puigging, internal box and the first sound absorbing layer and accommodation space insertion；Soundproof door is provided with the opening.
2. a kind of silencing case according to claim 1, it is characterised in that the length and width and height of the outer case be respectively
1150mm, 1050mm and 950mm.
3. a kind of silencing case according to claim 1, it is characterised in that the thickness of the outer case is 2mm, the outer container
The material of body is stainless steel.
4. a kind of silencing case according to claim 1, it is characterised in that the internal box is surrounded by multiple density boards,
The material of the density board is wood fibre；The thickness of the density board is 5mm.
5. a kind of silencing case according to claim 1, it is characterised in that the thickness of first puigging is 100mm；Institute
The material for stating the first puigging is Sound-proof material.
6. a kind of silencing case according to claim 1, it is characterised in that the thickness of first damping layer is 3mm；It is described
The material of first damping layer is damping material.
7. a kind of silencing case according to claim 1, it is characterised in that the material of first sound absorbing layer is wave sound-absorbing
Cotton, the thickness of first sound absorbing layer is 100mm.
8. a kind of silencing case according to claim 1, it is characterised in that the soundproof door includes door body；
The second damping layer, the second puigging, density board and the second sound absorbing layer are sequentially provided with the door body；
The door body is identical with the material of the outer case, thickness is equal；
Second damping layer is identical with the material of the first damping layer, thickness is equal；
Second puigging is identical with the material of the first puigging, thickness is equal；
The density board is identical with the material of the thickness of internal box, thickness is equal；
Second sound absorbing layer is identical with the material of the first sound absorbing layer, thickness is equal；
External environment condition and connecting inside internal box or closing can be realized by opening or closing the soundproof door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710550176.8A CN107328957A (en) | 2017-07-07 | 2017-07-07 | A kind of silencing case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710550176.8A CN107328957A (en) | 2017-07-07 | 2017-07-07 | A kind of silencing case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107328957A true CN107328957A (en) | 2017-11-07 |
Family
ID=60197189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710550176.8A Pending CN107328957A (en) | 2017-07-07 | 2017-07-07 | A kind of silencing case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107328957A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107750031A (en) * | 2017-11-18 | 2018-03-02 | 苏州岸肯电子科技有限公司 | A kind of vacuum mute case |
| CN110823552A (en) * | 2019-12-17 | 2020-02-21 | 万向钱潮（上海）汽车系统有限公司 | Electronic parking caliper noise measurement device and measurement method |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1166140A (en) * | 1967-08-22 | 1969-10-08 | Vokes Ltd | Apparatus for silencing an engine |
| KR100717683B1 (en) * | 2006-11-13 | 2007-05-11 | 덕산공조기계주식회사 | A noise reduction type damper |
| CN201963435U (en) * | 2011-03-09 | 2011-09-07 | 福建明辉机电有限公司 | Air inlet silencing mechanism of diesel engine air filter |
| CN103883151A (en) * | 2012-12-20 | 2014-06-25 | 北汽福田汽车股份有限公司 | Engine noise detection semi-anechoic chamber |
| CN104806355A (en) * | 2014-01-23 | 2015-07-29 | 福安市环球电机有限公司 | Sound attenuated enclosure for generator set |
| CN204559885U (en) * | 2015-04-13 | 2015-08-12 | 瑞声声学科技(常州)有限公司 | For the sound proof box of audio detection |
| CN204783543U (en) * | 2015-07-09 | 2015-11-18 | 重庆美的通用制冷设备有限公司 | A sound proof box and compressor unit spare for compressor |
| CN205000864U (en) * | 2015-08-20 | 2016-01-27 | 叶燕峰 | Sound insulation door |
| CN205046690U (en) * | 2015-09-21 | 2016-02-24 | 江苏欧美环保设备有限公司 | Micrite damping acoustic celotex board |
| CN105486501A (en) * | 2015-12-01 | 2016-04-13 | 贵州大学 | Method and device for measuring noise of four-drive transfer case motor assembly |
| CN205882475U (en) * | 2016-08-09 | 2017-01-11 | 河南远中电力设备有限公司 | Noise reduction type box substation |
| CN106373556A (en) * | 2016-11-08 | 2017-02-01 | 江苏英思达科技有限公司 | Silencing box |
| CN205946123U (en) * | 2016-08-22 | 2017-02-08 | 宁波新大业环保设备科技有限公司 | Glass steel sound -proof box |
| CN205976617U (en) * | 2016-08-26 | 2017-02-22 | 烟台鸿煊电子科技有限公司 | Production line product is silence room for verification test |
| CN206196015U (en) * | 2016-09-20 | 2017-05-24 | 深圳市佳晨科技有限公司 | High performance sound -proof box |
| CN206272849U (en) * | 2016-10-24 | 2017-06-20 | 广州视源电子科技股份有限公司 | Noise reduction testing device |
| CN207114577U (en) * | 2017-07-07 | 2018-03-16 | 深圳市信维通信股份有限公司 | A kind of silencing case |
-
2017
- 2017-07-07 CN CN201710550176.8A patent/CN107328957A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1166140A (en) * | 1967-08-22 | 1969-10-08 | Vokes Ltd | Apparatus for silencing an engine |
| KR100717683B1 (en) * | 2006-11-13 | 2007-05-11 | 덕산공조기계주식회사 | A noise reduction type damper |
| CN201963435U (en) * | 2011-03-09 | 2011-09-07 | 福建明辉机电有限公司 | Air inlet silencing mechanism of diesel engine air filter |
| CN103883151A (en) * | 2012-12-20 | 2014-06-25 | 北汽福田汽车股份有限公司 | Engine noise detection semi-anechoic chamber |
| CN104806355A (en) * | 2014-01-23 | 2015-07-29 | 福安市环球电机有限公司 | Sound attenuated enclosure for generator set |
| CN204559885U (en) * | 2015-04-13 | 2015-08-12 | 瑞声声学科技(常州)有限公司 | For the sound proof box of audio detection |
| CN204783543U (en) * | 2015-07-09 | 2015-11-18 | 重庆美的通用制冷设备有限公司 | A sound proof box and compressor unit spare for compressor |
| CN205000864U (en) * | 2015-08-20 | 2016-01-27 | 叶燕峰 | Sound insulation door |
| CN205046690U (en) * | 2015-09-21 | 2016-02-24 | 江苏欧美环保设备有限公司 | Micrite damping acoustic celotex board |
| CN105486501A (en) * | 2015-12-01 | 2016-04-13 | 贵州大学 | Method and device for measuring noise of four-drive transfer case motor assembly |
| CN205882475U (en) * | 2016-08-09 | 2017-01-11 | 河南远中电力设备有限公司 | Noise reduction type box substation |
| CN205946123U (en) * | 2016-08-22 | 2017-02-08 | 宁波新大业环保设备科技有限公司 | Glass steel sound -proof box |
| CN205976617U (en) * | 2016-08-26 | 2017-02-22 | 烟台鸿煊电子科技有限公司 | Production line product is silence room for verification test |
| CN206196015U (en) * | 2016-09-20 | 2017-05-24 | 深圳市佳晨科技有限公司 | High performance sound -proof box |
| CN206272849U (en) * | 2016-10-24 | 2017-06-20 | 广州视源电子科技股份有限公司 | Noise reduction testing device |
| CN106373556A (en) * | 2016-11-08 | 2017-02-01 | 江苏英思达科技有限公司 | Silencing box |
| CN207114577U (en) * | 2017-07-07 | 2018-03-16 | 深圳市信维通信股份有限公司 | A kind of silencing case |
Non-Patent Citations (2)
| Title |
|---|
| 数码创意: "《3DS MAX/VRAY展示设计实例解析》", 31 May 2016, pages: 15 * |
| 林世生: "《汽车音响》", 31 January 2014, pages: 232 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107750031A (en) * | 2017-11-18 | 2018-03-02 | 苏州岸肯电子科技有限公司 | A kind of vacuum mute case |
| CN110823552A (en) * | 2019-12-17 | 2020-02-21 | 万向钱潮（上海）汽车系统有限公司 | Electronic parking caliper noise measurement device and measurement method |
| CN110823552B (en) * | 2019-12-17 | 2022-04-22 | 万向钱潮（上海）汽车系统有限公司 | Electronic parking caliper noise measurement device and measurement method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207114577U (en) | A kind of silencing case | |
| CN107328957A (en) | A kind of silencing case | |
| Abom et al. | Dissipative silencers based on micro-perforated plates | |
| Wen et al. | Sound insulation properties of sandwich structure with hemispheric shell cores: Numerical and experimental studies | |
| CN101908338A (en) | Novel low-frequency sound insulating material | |
| Putra et al. | Normal Incidence of Sound Transmission Loss of a Double‐Leaf Partition Inserted with a Microperforated Panel | |
| Ma et al. | A thin-walled mesoscopic hybrid slit-resonator metamaterial absorber | |
| CN110459393A (en) | A kind of sound absorption composite members and a kind of transformer | |
| CN108487487A (en) | A kind of compound wedge absorber | |
| Bécot et al. | Noise control strategies using composite porous materials–Simulations and experimental validations on plate/cavity systems | |
| CN111781272A (en) | Composite material vibration and noise reduction tester and method based on reverberation plane acoustic wave excitation | |
| CN203057521U (en) | Soundproof box for audio test | |
| CN206341343U (en) | A kind of audio amplifier | |
| CN208258080U (en) | A kind of Acoustic test box of high oise insulation factor | |
| SheikhMozafari | Enhancing Sound Absorption in Micro-Perforated Panel and Porous Material Composite in Low Frequencies: A Numerical Study Using FEM | |
| CN203769576U (en) | Low-frequency sound-insulation door panel | |
| CN217681451U (en) | Opening structure of internally-opened wedge soundproof door | |
| CN219843723U (en) | Wooden box sound insulation test structure | |
| Oyelade et al. | Sound transmission through triple plates separated by air cavities in the low-frequency range | |
| CN206784628U (en) | Sound insulation module with wedge absorber | |
| Mosa et al. | Parametric study on absorption coefficient of inhomogeneous double-layer MPP | |
| Catapane et al. | Coupling effect of acoustic resonators for low-frequency sound suppression | |
| Oktav et al. | The Helmholtz Resonator Effect of the Trunk Cavity in the Acoustic Response of a Sedan | |
| CN203273230U (en) | Fixing clamp and audio interference device with same | |
| CN207728513U (en) | A kind of muffler and compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |