CN108074560A - Sound absorber and its noise reduction furniture in a kind of broadband room - Google Patents
Sound absorber and its noise reduction furniture in a kind of broadband room Download PDFInfo
- Publication number
- CN108074560A CN108074560A CN201810059127.9A CN201810059127A CN108074560A CN 108074560 A CN108074560 A CN 108074560A CN 201810059127 A CN201810059127 A CN 201810059127A CN 108074560 A CN108074560 A CN 108074560A
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- China
- Prior art keywords
- sound
- sound absorber
- absorber
- broadband
- room according
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 38
- 238000010521 absorption reaction Methods 0.000 claims abstract description 41
- 230000000694 effects Effects 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 239000011490 mineral wool Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 229910052602 gypsum Inorganic materials 0.000 claims description 3
- 239000010440 gypsum Substances 0.000 claims description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 238000001727 in vivo Methods 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000005534 acoustic noise Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
Abstract
The invention discloses sound absorber and its noise reduction furniture in a kind of broadband room, interface including forming house inner space, further include the sound absorption module for the adjacent interfaces intersection for being fixed on the interface, the sound absorption module includes babinet, and the in vivo sound absorber of the case is arranged at, the babinet at least one side wall is provided with entrant sound face.It, can be by the setting for the module that absorbs sound, using sound wave in hard metope with the characteristic of mutually reflection reinforcement acoustic pressure with this structure design, effectively reduce house internal noise, and designed using modularity, it enables to construct more convenient, then effective lifting construction efficiency.
Description
Technical field
The present invention relates to sound absorber and its noise reduction men in indoor noise reduction technology field more particularly to a kind of broadband room
Tool.
Background technology
Interior noise reduction at present, mostly using the whole furred ceiling that absorbs sound of tradition, whole absorbing wall component is laid with carpet, installs window
Curtain, puts sound-absorbing screen, hangs the measures such as various canvas, cylindrical reflector on the ceiling.Traditional product price is high, install compared with
For complexity, repair not easy to clean is not easy old room and installs additional, and occupies larger useful space area and volume.And useful effect
Frequency range is different, is mostly in 250-4000Hz.Most of product only considers the frequency of more than 500Hz.It is domestic at present
Outer many specifications, to rooms such as the classroom based on language purposes, meeting rooms, the reverberation time nearly all only proposes 500Hz will
It asks, for other frequency ranges, particularly low-frequency range does not require substantially.No matter but domestic have in the world or all not in recent years
Lack the focus of attention harm of low-frequency noise, because the low-frequency component of most of noises is higher, particularly traffic noise and industry
Noise.And the sound insulation effect of various sound insulating structures, it is minimum in low frequency.And language has the energy that can not ignore in low frequency
Amount, these energy can also excite the normal mode vibration (standing wave) in cubicle, so as to strengthen part low-frequency component in sound field.And because
High sound level low frequency to medium-high frequency masking effect there are phenomena such as asymmetrical characteristic, all sheltered it is particularly important to clarity in,
High frequency, the final intelligibility for influencing language.Therefore, in order to improve the intelligibility of speech, it is necessary to inhibit low frequency standing wave in cubicle, subtract
Low extraneous noise and the indoor noise itself generated, the influence of attenuating low-frequency noise, just must increase indoor low frequency extremely in space
Few damping since 63Hz.Currently on the market for low frequency noise reduction product be not it is at high price be exactly it is bulky, be mostly
Professional acoustic noise reduction field is developed.Sky is substantially at for (complete) the frequency sound absorption product of width of civilian (including place of imparting knowledge to students) exploitation
White state (63-1000Hz).
The content of the invention
It is an object of the invention to provide one kind can effectively absorb room noise, and facilitates in the broadband room of installation and inhale
Acoustic device and its noise reduction furniture.
For this purpose, the present invention uses following technical scheme：
A kind of sound absorber in broadband room, the interface including forming house inner space, further includes and is fixed on the boundary
The sound absorption module of the adjacent interfaces intersection in face, the sound absorption module include babinet and are arranged at the in vivo sound absorption of the case
Body, the babinet at least one side wall are provided with entrant sound face.
Wherein, the width of the cross section of the sound absorber and height are all higher than 200mm.
Wherein, the acting frequency scope of the sound absorber is more than 50Hz.
Wherein, the sound absorption module is installed on three face intersections of the interior space or two sides intersection.
Wherein, the entrant sound is facing towards metope, ground or the ceiling opposite with the entrant sound face.
Wherein, the box body wall for being provided with the entrant sound face is arranged to perforating gypsum board, perforated metal, perforation plank or nothing
Woven fabric；The sound absorber is arranged to mineral wool, mineral wool, polyester fiber, melamine foamed plastic plate or glass foam plate.
Wherein, the cross section of the babinet is arranged to rectangle, square, triangle, polygon, circle, semicircle or 1/4
It is circular.
Wherein, the entrant sound face is provided with to cover the protective cover of the sound penetrating hole.
Wherein, the sound absorption module is provided through passage, and air hose, transmission of electricity pipeline or fire-fighting are equipped in the passage
Pipeline.
A kind of noise reduction furniture, including sound absorption module described above and with it is described sound absorption the matched furniture of module.
Beneficial effects of the present invention：The present invention includes forming the interface of house inner space, further includes and is fixed on the boundary
The sound absorption module of the adjacent interfaces intersection in face, the sound absorption module include babinet and are arranged at the in vivo sound absorption of the case
Body, the babinet at least one side wall are provided with entrant sound face.With this structure design, can be utilized by the setting for the module that absorbs sound
Sound wave strengthens the characteristic of acoustic pressure in hard metope with mutually reflection, effectively reduces house internal noise, and is designed using modularity, energy
Enough so that construction is more convenient, then effective lifting construction efficiency.
Description of the drawings
Fig. 1 is structure diagram when sound absorber sets single sound absorption module in a kind of broadband room of the present invention.
Structure diagram when Fig. 2 is two sound absorption modules of sound absorber setting in a kind of broadband room of the present invention.
Structure diagram when Fig. 3 is three sound absorption modules of sound absorber setting in a kind of broadband room of the present invention.
Fig. 4 is axonometric drawing when present invention sound absorption module is provided through passage.
Fig. 5 is the sound absorbing performance comparative graph of full-frequency sound absorption body of the present invention and conventional sound absorber.
Specific embodiment
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
With reference to shown in Fig. 1 to Fig. 4, sound absorber in a kind of broadband room in the present embodiment is empty inside house including forming
Between interface and be fixed on interface adjacent interfaces intersection sound absorption module, sound absorption module include babinet 1 and set
Sound absorber in babinet 1, babinet 1 have one side wall to be provided with entrant sound face 11, and signified interface is mainly comprising within doors in the present embodiment
The metope 3 of surrounding, within doors ground 4 and ceiling surface 2, in actual noise test process, since noise all concentrates on phase within doors
The intersection of vicinal, therefore the sound absorption module 1 employed in the present embodiment is preferably attached to the intersection of adjacent interfaces, with this
Playing effectively reduces the purpose of noise within doors.
The module 1 that absorbs sound with reference to shown in Fig. 3, in the present embodiment is mountable at indoor corner, three the same of module 1 that absorb sound
One end is intersected in corner, and the noise at the corner more concentrated to noise with this carries out effective noise reduction.
With reference to shown in Fig. 1 and Fig. 2, the sound absorption module in the present embodiment can also be as needed, and one is set at corner
Or two sound absorption modules, the design requirement of noise figure needed for interior is met with this.
In order to play preferable sound absorption effect, entrant sound face 11 in the present embodiment towards the metope opposite with entrant sound face 11,
Face or ceiling surface, with this according to interior decoration needs, convenient, flexible setting sound absorption module.
In the present embodiment, the box body wall for being provided with entrant sound face 11 could be provided as perforating gypsum board, perforated metal, perforation
Plank or non-woven fabrics, sound absorber could be provided as mineral wool, mineral wool, polyester fiber, melamine foamed plastic plate or glass foam
Plate, the cross section of babinet 1 could be provided as rectangle, square, triangle, polygon, circle, semicircle or 1/4 circle.
Room noise is controlled in order to facilitate adjustment, is provided with to cover sound penetrating hole 12 in entrant sound face 11 in the present embodiment
Protective cover (does not mark) in attached drawing, when need not be to room noise noise reduction, you can blocks sound penetrating hole 12 by protective cover, needs
It wants to open during noise reduction, can also the protection on the entrant sound face 11 of corresponding sound absorption module be adjusted flexibly according to required room noise value
It covers (not marked in attached drawing).
In order to effectively promote the sound absorption effect of sound absorption module, preferably, the babinet 1 for the module that absorbs sound in the present embodiment is except saturating
Side outside sound face 11 is insulated against sound setting, and the noise that babinet 1 is flowed into this is decreased sufficiently.
In addition, with reference to shown in Fig. 4, in order to facilitate the laying of circuit during interior decoration and pipeline in the present embodiment, absorb sound mould
Group is provided through passage 13, and air hose, transmission of electricity pipeline or fire main are equipped in passage 13.
Preferably, in order to effectively realize broadband noise reduction, the width and height of the cross section of sound absorber in the present embodiment
200mm is all higher than, the acting frequency scope of sound absorber is more than 50Hz.
In order to which the noise reduction to sound absorber in the broadband room in the present embodiment is effectively illustrated, with reference to Fig. 5
It is shown, the sound absorber (40cm x 50cm x 647.5cm) of same volume is positioned in reverberation chamber and tested, when will be tested
Sound absorber is placed in room interface intersection, the entrant sound area S in the face that absorbs soundAFor 2.59m2When, between frequency and effective acoustic absorptivity
Curve tendency is as shown in a lines in Fig. 5；When by tested sound absorber sound absorption face entrant sound area SAFor 3.24m2When, frequency is with having
The curve tendency between acoustic absorptivity is imitated as shown in the b lines in Fig. 5；When by the volume sound absorber different from above-mentioned sound absorber volume
When (40cm x 300cm x 400cm) is placed in one plane of room (non-interface intersection), the entrant sound face in the sound absorption face of sound absorber
Product SAFor 12m2, the curve tendency between the frequency that measures and effective acoustic absorptivity is as shown in the C lines in Fig. 5.Therefore, in synthesis
State test result, it can be clearly seen that, when the sound absorption module is placed in room interface intersection, suction as much can be used
Sound body in entire frequency band, especially obtains the sound absorption effect of bigger in low-frequency range.
It is including above-mentioned sound absorption module and matched with sound absorption module present invention also provides a kind of noise reduction furniture
Furniture, furniture can refer to putting for the module that absorbs sound in the above embodiment, which is arranged at long seat by taking bench as an example
The corner of plate bottom surface, will equally play the role of preferable sqouynd absorption lowering noise, not do specifically repeating herein.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention cannot be construed in any way.Based on explanation herein, the technology of this field
Personnel would not require any inventive effort the other specific embodiments that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. sound absorber in a kind of broadband room, the interface including forming house inner space, it is characterised in that：Further include fixation
In the sound absorption module of the adjacent interfaces intersection at the interface, the sound absorption module includes babinet and is arranged at the babinet
Interior sound absorber, the babinet at least one side wall are provided with entrant sound face.
2. sound absorber in a kind of broadband room according to claim 1, it is characterised in that：The cross section of the sound absorber
Width and height be all higher than 200mm.
3. sound absorber in a kind of broadband room according to claim 1, it is characterised in that：The effect frequency of the sound absorber
Rate scope is more than 50Hz.
4. sound absorber in a kind of broadband room according to claim 1, it is characterised in that：The sound absorption module is installed on
Three face intersections of the interior space or two sides intersection.
5. sound absorber in a kind of broadband room according to claim 1, it is characterised in that：The entrant sound facing towards with institute
State the opposite metope in entrant sound face, ground or ceiling.
6. sound absorber in a kind of broadband room according to claim 1, it is characterised in that：It is provided with the entrant sound face
Box body wall is arranged to perforating gypsum board, perforated metal, perforation plank or non-woven fabrics；The sound absorber is arranged to mineral wool, glass
Glass cotton, polyester fiber, melamine foamed plastic plate or glass foam plate.
7. sound absorber in a kind of broadband room according to claim 1, it is characterised in that：The cross section of the babinet is set
It is circular to be set to rectangle, square, triangle, polygon, circle, semicircle or 1/4.
8. sound absorber in a kind of broadband room according to claim 1, it is characterised in that：The entrant sound face sets useful
In the protective cover for covering the sound penetrating hole.
9. sound absorber in a kind of broadband room according to claim 1, it is characterised in that：The sound absorption module, which runs through, to be set
Passage is equipped with, air hose, transmission of electricity pipeline or fire main are equipped in the passage.
10. a kind of noise reduction furniture, it is characterised in that：Including the sound absorption module described in claim 1 to 9 any one, Yi Jiyu
The sound absorption matched furniture of module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059127.9A CN108074560A (en) | 2018-01-22 | 2018-01-22 | Sound absorber and its noise reduction furniture in a kind of broadband room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059127.9A CN108074560A (en) | 2018-01-22 | 2018-01-22 | Sound absorber and its noise reduction furniture in a kind of broadband room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108074560A true CN108074560A (en) | 2018-05-25 |
Family
ID=62156627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810059127.9A Pending CN108074560A (en) | 2018-01-22 | 2018-01-22 | Sound absorber and its noise reduction furniture in a kind of broadband room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108074560A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532784A (en) * | 2018-06-15 | 2018-09-14 | 苏州岸肯电子科技有限公司 | A kind of tablet noise elimination structure |
| CN112116901A (en) * | 2020-09-18 | 2020-12-22 | 北京市燃气集团有限责任公司 | Method for improving acoustic subjective evaluation index of medium-low pressure gas pressure regulating tank |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08129389A (en) * | 1994-10-31 | 1996-05-21 | Fujikura Ltd | Adjusting structure for room sound |
| CN201172897Y (en) * | 2008-03-12 | 2008-12-31 | 恩沛音响设备(上海)有限公司 | Diffusion sound absorbers on surface of fabric |
| CN201172896Y (en) * | 2008-03-12 | 2008-12-31 | 恩沛音响设备(上海)有限公司 | Sound absorbers for interface sound treatment |
| DE102011105608A1 (en) * | 2011-06-27 | 2012-12-27 | Forschungsgesellschaft für Systemsicherheit und Arbeitsmedizin e.V. (FSA e.V.) | Sound-absorbing arrangement for low frequencies in type of edge-absorber, is provided with ashlar-formed containers with fibrous or porous absorption material and room-sided encasing around container |
| CN202835696U (en) * | 2012-09-03 | 2013-03-27 | 北京科奥克声学技术有限公司 | Wide band sound absorption wind pipe and air inlet |
| CN106368341A (en) * | 2016-11-08 | 2017-02-01 | 江苏英思达科技有限公司 | Corner ventilation silencer |
| CN207852306U (en) * | 2018-01-22 | 2018-09-11 | 深圳可朗声科技有限公司 | Sound absorber and its noise reduction furniture in a kind of broadband room |
-
2018
- 2018-01-22 CN CN201810059127.9A patent/CN108074560A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08129389A (en) * | 1994-10-31 | 1996-05-21 | Fujikura Ltd | Adjusting structure for room sound |
| CN201172897Y (en) * | 2008-03-12 | 2008-12-31 | 恩沛音响设备(上海)有限公司 | Diffusion sound absorbers on surface of fabric |
| CN201172896Y (en) * | 2008-03-12 | 2008-12-31 | 恩沛音响设备(上海)有限公司 | Sound absorbers for interface sound treatment |
| DE102011105608A1 (en) * | 2011-06-27 | 2012-12-27 | Forschungsgesellschaft für Systemsicherheit und Arbeitsmedizin e.V. (FSA e.V.) | Sound-absorbing arrangement for low frequencies in type of edge-absorber, is provided with ashlar-formed containers with fibrous or porous absorption material and room-sided encasing around container |
| CN202835696U (en) * | 2012-09-03 | 2013-03-27 | 北京科奥克声学技术有限公司 | Wide band sound absorption wind pipe and air inlet |
| CN106368341A (en) * | 2016-11-08 | 2017-02-01 | 江苏英思达科技有限公司 | Corner ventilation silencer |
| CN207852306U (en) * | 2018-01-22 | 2018-09-11 | 深圳可朗声科技有限公司 | Sound absorber and its noise reduction furniture in a kind of broadband room |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532784A (en) * | 2018-06-15 | 2018-09-14 | 苏州岸肯电子科技有限公司 | A kind of tablet noise elimination structure |
| CN112116901A (en) * | 2020-09-18 | 2020-12-22 | 北京市燃气集团有限责任公司 | Method for improving acoustic subjective evaluation index of medium-low pressure gas pressure regulating tank |
| CN112116901B (en) * | 2020-09-18 | 2024-03-05 | 北京市燃气集团有限责任公司 | Method for improving acoustic subjective evaluation index of medium-low pressure gas pressure regulating tank |
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