CN106303884A - The low frequency shielded box coordinated based on material behavior lamination - Google Patents
The low frequency shielded box coordinated based on material behavior lamination Download PDFInfo
- Publication number
- CN106303884A CN106303884A CN201610837620.XA CN201610837620A CN106303884A CN 106303884 A CN106303884 A CN 106303884A CN 201610837620 A CN201610837620 A CN 201610837620A CN 106303884 A CN106303884 A CN 106303884A
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- CN
- China
- Prior art keywords
- shielded box
- case
- outer container
- low frequency
- lamination
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a kind of low frequency shielded box, it is desirable to provide a kind of test performance is stable, safety height, good economy performance, easy to operate, safeguard simple and easily extension low frequency shielded box based on the cooperation of material behavior lamination.The present invention includes case (2) in shielded box outer container (1) and the shielded box that is arranged in described shielded box outer container (1), described shielded box outer container (1) is containment housing, aluminium-plastic panel (13) that the tank wall of described shielded box outer container (1) includes setting gradually from outside to inside, composite sound insulation board (14), glass fibre cotton I(15), density board I(16) and Sound-proof material (17).The present invention is applied to the technical field of audio frequency shielded box.
Description
Technical field
The present invention relates to a kind of low frequency shielded box, particularly to the low frequency shielded box coordinated based on material behavior lamination.
Background technology
From heavy mechanical equipment to consumption electronic product, the reliability of various structural members is that product is from researching and developing to generation process
In must issues that need special attention.For acoustic product, the performance indications of product need to carry out management and control, and its general way is just
It it is test.The test of acoustic product needs to carry out under specific sound field, and the noise of environment can not be excessive, otherwise can not survey
Obtain the characteristic of acoustic product.Usually, acoustical testing needs to carry out in dead room or shielded box.Because of test environment and use
The difference of purpose, the requirement to shielded box is the most different, and existing various shielded boxes are substantially for shielding more than 100Hz
Signal, poor to the shielding properties of low-frequency noise, it is impossible to for producing the low-frequency test carrying out product on line, thus need to disappearing
Sound chamber carries out dependence test, but dead room exists the shortcomings such as big, maintenance and expansion inconvenience that take up room, and so can increase enterprise
The production cost of industry.
Summary of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, it is provided that a kind of test performance is stable,
Safety height, good economy performance, easy to operate, safeguard simple and easily extension the low frequency shielding coordinated based on material behavior lamination
Case.
The technical solution adopted in the present invention is: the present invention includes shielded box outer container and is arranged in described shielded box outer container
Shielded box in case, described shielded box outer container is containment housing, and the tank wall of described shielded box outer container includes setting the most successively
Aluminium-plastic panel, composite sound insulation board, glass fibre cotton I, density board I and the Sound-proof material put.
Further, in described shielded box, case is containment housing, and in described shielded box, the tank wall of case includes the most successively
Integrally molded formula aluminum case, deadening felt, glass fibre cotton II, density board II and the acoustical cotton arranged, the case of case in described shielded box
Signal transfer box it is provided with on wall.
Further, several tool installing holes it are provided with in described shielded box inside the tank wall of case.
Further, it is provided with several shock absorption footpads between case in described shielded box outer container and described shielded box.
Further, described shielded box outer container being provided with outer container chamber door, described outer container chamber door includes setting the most successively
The described aluminium-plastic panel put, described composite sound insulation board, described glass fibre cotton I, described density board I and described Sound-proof material.
Further, the sidepiece of described outer container chamber door is provided with the outer ring step I of ecto-entad depression of order successively, in described shielding
The porch suitable with described outer container chamber door of case outer container 1 is provided with and described annular step suitable for outer ring step I
I, described annular step I ecto-entad rises rank successively.
Further, being provided with interior case chamber door in described shielded box on case, described interior case chamber door includes setting the most successively
The described integrally molded formula aluminum case put, described deadening felt, described glass fibre cotton II, described density board II and described acoustical cotton.
Further, the sidepiece of described interior case chamber door is provided with the outer ring step II of ecto-entad depression of order successively, at described screen
The porch suitable with described interior case chamber door covering case outer container 1 is provided with and described annular platform suitable for outer ring step II
Rank, described annular step II ecto-entad rises rank successively.
Further, the described low frequency shielded box coordinated based on material behavior lamination also includes shielded box support, described shielding
Case outer container is positioned on described shielded box support.
Further, in the tank wall of described shielded box outer container, it is additionally provided with box frame, described box frame is socketed with and subtracts
Shake rubber sleeve.
The invention has the beneficial effects as follows: owing to the present invention is directed to different materials, absorption and the reflecting properties difference of noise are adopted
Design by the structure of multiple material lamination, including shielded box outer container and case in the shielded box being arranged in described shielded box outer container,
Described shielded box outer container is containment housing, and the tank wall of described shielded box outer container includes the aluminium-plastic panel set gradually from outside to inside, answers
Close baffle, glass fibre cotton I, density board I and Sound-proof material, enter shielded box partial noise by glass fibre cotton I and density
Plate I cooperation carries out initial absorption process, the most more post processing through Sound-proof material and is substantially reduced case 2 in the described shielded box of entrance
Noise, and then in described shielded box, the noise level in case is the lowest, so, sound insulation value of the present invention is excellent, and possessing can
By property, safety, economy, being suitable for streamline and produce occasion use in enormous quantities, automaticity is high, it is simple to operation.
Further, since be provided with several tool installing holes in described shielded box inside the tank wall of case, so, energy root of the present invention
The difference of border test product size and the difference of method of clamping carry out the conversion of modular frock factually, save space and user
Just, relative to the consolidated structures of the most various similar shielded boxes, can not only provide lower frequency shielding action and
Making an uproar in the lower level end, and can directionally change frock along with the change of measurand to realize upgrading, safeguard with
Upgrading extension, reduces and safeguards and extension cost.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention；
Fig. 2 is the sectional view of the present invention.
Detailed description of the invention
As depicted in figs. 1 and 2, in the present embodiment, the present invention includes shielded box outer container 1 and is arranged on outside described shielded box
Case 2 in shielded box in case 1, described shielded box outer container 1 is containment housing, and the tank wall of described shielded box outer container 1 includes by the most extremely
Aluminium-plastic panel 13, composite sound insulation board 14, glass fibre cotton I15, density board I16 and the Sound-proof material 17 inside set gradually.
In the present embodiment, in described shielded box, case 2 is containment housing, and in described shielded box, the tank wall of case 2 includes by outward
Integrally molded formula aluminum case 22, deadening felt 23, glass fibre cotton II24, density board II25 and the acoustical cotton 26 set gradually in Zhi,
Signal transfer box 21 it is provided with on the tank wall of case 2 in described shielded box.In the present embodiment, test signal can be by described shielding
In case, the described Signal transfer box 21 in case 2 interacts communication with external test facility.
In the present embodiment, four tool installing holes 27 it are provided with in described shielded box inside the tank wall of case 2.Test is for propping up
The tool of support test product can be designed according to actual needs, and this tool has only to and four institutes in case 2 in described shielded box
Stating tool installing hole 27 to carry out coordinating, degree of freedom is big, configurable degree is high, it is simple to compatible variety classes, different size
Product.
In the present embodiment, it is provided with several vibration damping feet between case 2 in described shielded box outer container 1 and described shielded box
Pad, several described shock absorption footpads make the low-frequency vibration in entrance described shielded box outer container 1 be decayed.
In the present embodiment, described shielded box outer container 1 being provided with outer container chamber door, described outer container chamber door includes from outside to inside
The described aluminium-plastic panel 13 that sets gradually, described composite sound insulation board 14, described glass fibre cotton I15, described density board I16 and described
Sound-proof material 17.
In the present embodiment, the sidepiece of described outer container chamber door is provided with the outer ring step I of ecto-entad depression of order successively, in institute
The porch suitable with described outer container chamber door stating shielded box outer container 1 is provided with and described internal ring suitable for outer ring step I
Shape step I, described annular step I ecto-entad rises rank successively.
In the present embodiment, being provided with interior case chamber door in described shielded box on case 2, described interior case chamber door includes from outside to inside
The described integrally molded formula aluminum case 22 that sets gradually, described deadening felt 23, described glass fibre cotton II24, described density board II25
With described acoustical cotton 26.
In the present embodiment, the sidepiece of described interior case chamber door is provided with the outer ring step II of ecto-entad depression of order successively,
The porch suitable with described interior case chamber door of described shielded box outer container 1 be provided with suitable with described outer ring step II in
Ring-shaped step, described annular step II ecto-entad rises rank successively.
In the present embodiment, the described low frequency shielded box coordinated based on material behavior lamination also includes shielded box support 3, institute
State shielded box outer container 1 to be positioned on described shielded box support 3.
In the present embodiment, box frame 11, described box frame 11 it are additionally provided with in the tank wall of described shielded box outer container 1
On be socketed with vibration-absorbing rubber sleeve 12.In the present embodiment, box frame 11 described in described shielded box outer container 1 with described compound every
It is connected by described vibration-absorbing rubber sleeve 12, to reach the attenuation processing to low frequency signal between soundboard 14.
The present invention is during using, and described in described shielded box outer container 1, composite sound insulation board is by major part environment noise
Carry out reflecting thus decrease inside entrance shielded box.Enter shielded box partial noise by described glass fibre cotton I15 and institute
State density board I16 to coordinate and carry out initial absorption process, the most more post processing through described Sound-proof material 17 and be substantially reduced entrance
The noise of case 2 in described shielded box.In like manner, in described shielded box, the noise level in case 2 is the lowest.
Test performance of the present invention is stable, and can carry out according to the difference of the difference of reality test product size and method of clamping
Modular frock converts, and saves space and easy to use, relative to the consolidated structures of the most various similar shielded boxes,
Making an uproar in shielding action and the lower level end that can not only provide lower frequency, and can orient along with the change of measurand
Ground is changed frock and is realized upgrading, safeguards and upgrades extension, reduces and safeguards and extension cost.Its sound insulation value is excellent, tool
Standby reliability, safety, economy, be suitable for streamline and produce occasion use in enormous quantities, and automaticity is high, it is simple to operation, because of
This has the most wide market prospect.
The present invention is applied to the technical field of audio frequency shielded box.
Although embodiments of the invention describe with practical solution, but it is not intended that the limit to implication of the present invention
System, the such as present invention can also arrange vacuum extractor, described shielded box outer container 1 sets one be connected with inside it lead to
Hole, described vacuum extractor is connected with described through hole, opens described vacuum extractor in use so that outside described shielded box
Case 1 internal one-tenth vacuum state, and then isolation external audio signal；And for example magnetic force generator is set in described shielded box outer container 1,
And permanent magnet is set outside case 2 in described shielded box, and when described magnetic force generator produces suitable magnetic force, described permanent magnet
And produce active force between described magnetic force generator, so that case 2 is suspended in the air in described shielded box, and then decrease sound
The delivering path of frequency.For those skilled in the art, according to this specification to the amendment of its embodiment and with other schemes
Combination will be apparent from.
Claims (10)
1. the low frequency shielded box coordinated based on material behavior lamination, including shielded box outer container (1) be arranged on described shielding
Case (2) in shielded box in case outer container (1), it is characterised in that: described shielded box outer container (1) is containment housing, described shielded box
Aluminium-plastic panel (13) that the tank wall of outer container (1) includes setting gradually from outside to inside, composite sound insulation board (14), glass fibre cotton I(15),
Density board I(16) and Sound-proof material (17).
The low frequency shielded box coordinated based on material behavior lamination the most according to claim 1, it is characterised in that: described shielding
In case, case (2) is containment housing, and in described shielded box, the tank wall of case (2) includes the integrally molded formula aluminum set gradually from outside to inside
Case (22), deadening felt (23), glass fibre cotton II(24), density board II(25) and acoustical cotton (26), case (2) in described shielded box
Tank wall on be provided with Signal transfer box (21).
The low frequency shielded box coordinated based on material behavior lamination the most according to claim 2, it is characterised in that: described shielding
Several tool installing holes (27) it are provided with inside the tank wall of case (2) in case.
4., according to the low frequency shielded box coordinated based on material behavior lamination described in any one of claims 1 to 3, its feature exists
In: it is provided with several shock absorption footpads between case (2) in described shielded box outer container (1) and described shielded box.
The low frequency shielded box coordinated based on material behavior lamination the most according to claim 1, it is characterised in that: described shielding
Being provided with outer container chamber door on case outer container (1), described outer container chamber door includes described aluminium-plastic panel (13), the institute set gradually from outside to inside
State composite sound insulation board (14), described glass fibre cotton I(15), described density board I(16) and described Sound-proof material (17).
The low frequency shielded box coordinated based on material behavior lamination the most according to claim 5, it is characterised in that: described outer container
The sidepiece of chamber door is provided with the outer ring step I of ecto-entad depression of order successively, described shielded box outer container (1) with described outer container case
The suitable porch of door is provided with and described annular step I suitable for outer ring step I, and described annular step I is by outward
Inwardly rise rank successively.
The low frequency shielded box coordinated based on material behavior lamination the most according to claim 2, it is characterised in that: described shielding
Being provided with interior case chamber door in case on case (2), described interior case chamber door includes the described integrally molded formula aluminum set gradually from outside to inside
Case (22), described deadening felt (23), described glass fibre cotton II(24), described density board II(25) and described acoustical cotton (26).
The low frequency shielded box coordinated based on material behavior lamination the most according to claim 7, it is characterised in that: described interior case
The sidepiece of chamber door is provided with the outer ring step II of ecto-entad depression of order successively, described shielded box outer container (1) with described interior case
The suitable porch of chamber door is provided with and described annular step suitable for outer ring step II, described annular step II by
Rise rank the most successively.
The most according to claim 1 based on material behavior lamination coordinate low frequency shielded box, it is characterised in that: described based on
The low frequency shielded box that material behavior lamination coordinates also includes that shielded box support (3), described shielded box outer container (1) are positioned at described shielding
On box bracket (3).
The low frequency shielded box coordinated based on material behavior lamination the most according to claim 1, it is characterised in that: described screen
Being additionally provided with box frame (11) in covering the tank wall of case outer container (1), described box frame is socketed with vibration-absorbing rubber sleeve on (11)
(12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837620.XA CN106303884A (en) | 2016-09-22 | 2016-09-22 | The low frequency shielded box coordinated based on material behavior lamination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837620.XA CN106303884A (en) | 2016-09-22 | 2016-09-22 | The low frequency shielded box coordinated based on material behavior lamination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106303884A true CN106303884A (en) | 2017-01-04 |
Family
ID=57712910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610837620.XA Pending CN106303884A (en) | 2016-09-22 | 2016-09-22 | The low frequency shielded box coordinated based on material behavior lamination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106303884A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107333220A (en) * | 2017-08-16 | 2017-11-07 | 珠海市精实测控技术有限公司 | Audio-frequency test shielded box |
| CN109462810A (en) * | 2018-12-19 | 2019-03-12 | 珠海市精实测控技术有限公司 | A kind of Mobile phone horn aging testing system |
| CN109712603A (en) * | 2018-12-19 | 2019-05-03 | 珠海市精实测控技术有限公司 | A kind of automation shielded box |
| CN113821954A (en) * | 2021-09-23 | 2021-12-21 | 广东省科学院智能制造研究所 | Design method of acoustic shielding box |
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| US5504281A (en) * | 1994-01-21 | 1996-04-02 | Minnesota Mining And Manufacturing Company | Perforated acoustical attenuators |
| US20090242325A1 (en) * | 2008-03-27 | 2009-10-01 | Dell Seven, Inc. | Acoustically insulating product |
| CN201629212U (en) * | 2010-04-15 | 2010-11-10 | 黄顺国 | Sound deadening foil |
| CN202711685U (en) * | 2012-08-10 | 2013-01-30 | 常州市戚墅堰新科电器设备有限公司 | Sound-proof box used for noise test |
| 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 |
| CN206118023U (en) * | 2016-09-22 | 2017-04-19 | 珠海市精实测控技术有限公司 | Low frequency shielded cell based on cooperation of material properties lamination |
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2016
- 2016-09-22 CN CN201610837620.XA patent/CN106303884A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5504281A (en) * | 1994-01-21 | 1996-04-02 | Minnesota Mining And Manufacturing Company | Perforated acoustical attenuators |
| US20090242325A1 (en) * | 2008-03-27 | 2009-10-01 | Dell Seven, Inc. | Acoustically insulating product |
| CN201629212U (en) * | 2010-04-15 | 2010-11-10 | 黄顺国 | Sound deadening foil |
| CN202711685U (en) * | 2012-08-10 | 2013-01-30 | 常州市戚墅堰新科电器设备有限公司 | Sound-proof box used for noise test |
| 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 |
| CN206118023U (en) * | 2016-09-22 | 2017-04-19 | 珠海市精实测控技术有限公司 | Low frequency shielded cell based on cooperation of material properties lamination |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107333220A (en) * | 2017-08-16 | 2017-11-07 | 珠海市精实测控技术有限公司 | Audio-frequency test shielded box |
| CN109462810A (en) * | 2018-12-19 | 2019-03-12 | 珠海市精实测控技术有限公司 | A kind of Mobile phone horn aging testing system |
| CN109712603A (en) * | 2018-12-19 | 2019-05-03 | 珠海市精实测控技术有限公司 | A kind of automation shielded box |
| CN113821954A (en) * | 2021-09-23 | 2021-12-21 | 广东省科学院智能制造研究所 | Design method of acoustic shielding box |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
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