CN207852306U - 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
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- CN207852306U CN207852306U CN201820109617.0U CN201820109617U CN207852306U CN 207852306 U CN207852306 U CN 207852306U CN 201820109617 U CN201820109617 U CN 201820109617U CN 207852306 U CN207852306 U CN 207852306U
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- sound
- sound absorber
- absorber
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- absorption module
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Abstract
The utility model discloses sound absorber and its noise reduction furniture in a kind of broadband room, interface including constituting house inner space, it further include the sound absorption module for the adjacent interfaces intersection for being fixed on the interface, the sound absorption module includes babinet, and it is set to the sound absorber in the babinet, the babinet at least one side wall is provided with entrant sound face.With this structure design, the characteristic of acoustic pressure can be reinforced with mutually reflection in hard metope using sound wave by the setting for the module that absorbs sound, effectively reduce house internal noise, and designed using modularity, it enables to construct more convenient, then effective lifting construction efficiency.
Description
Technical field
The utility model is related to sound absorber and its noise reductions in indoor noise reduction technology field more particularly to a kind of broadband room
Furniture.
Background technology
Interior noise reduction at present, mostly uses traditional whole sound absorption furred ceiling, and whole absorbing wall component is laid with carpet, installs window
Curtain, puts sound-absorbing screen, hangs various canvas, the measures such as cylindrical reflector on the ceiling.Traditional product price is high, installation 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 500Hz or more.It is domestic at present
Outer many specifications, to the classroom based on language purposes, the reverberation time is nearly all only wanted 500Hz propositions in the rooms such as meeting room
It asks, other frequency ranges, especially low-frequency range is not required substantially.No matter but domestic having in the world or all not in recent years
The harm of low-frequency noise of few focus of attention, because the low-frequency component of most of noises is higher, especially 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, to strengthen part low-frequency component in sound field.And because
High sound level low frequency to medium-high frequency masking effect there are asymmetrical characteristics phenomena such as, 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.Being directed to the noise reduction product of low frequency currently on the market, that not to be at high price be exactly is bulky, mostly
Professional acoustic noise reduction field is developed.It is substantially at sky for (complete) the frequency sound absorption product of width of civilian (including teaching place) exploitation
White state (63-1000Hz).
Utility model content
The purpose of this utility model is to provide one kind capable of effectively absorbing room noise, and facilitates the broadband room of installation
Interior sound absorber and its noise reduction furniture.
For this purpose, the utility model uses following technical scheme：
Sound absorber in a kind of broadband room includes the interface for constituting house inner space, further includes being fixed on the boundary
The sound absorption module of the adjacent interfaces intersection in face, the sound absorption module includes babinet, and the sound absorption being set in the babinet
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 range of the sound absorber is more than 50Hz.
Wherein, the sound absorption module is installed on three face intersections or the two sides intersection of the interior space.
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 set as perforating gypsum board, perforated metal, perforation plank or nothing
Woven fabric；The sound absorber is set as mineral wool, mineral wool, polyester fiber, melamine foamed plastic plate or glass foam plate.
Wherein, the cross section of the babinet is set as rectangle, rectangular, triangle, polygon, circle, semicircle or 1/4
It is round.
Wherein, the entrant sound face is provided with the protective cover for covering the sound penetrating hole.
Wherein, the sound absorption module is provided through channel, and air hose, transmission of electricity pipeline or fire-fighting are equipped in the channel
Pipeline.
A kind of noise reduction furniture, including sound absorption module described above, and with the matched furniture of the sound absorption module.
The beneficial effects of the utility model：The utility model includes the interface for constituting house inner space, further includes fixing
In the sound absorption module of the adjacent interfaces intersection at the interface, the sound absorption module includes babinet, and is set to the babinet
Interior sound absorber, the babinet at least one side wall are provided with entrant sound face.It, being capable of setting by the module that absorbs sound with this structure design
It sets, reinforces the characteristic of acoustic pressure with mutually reflection in hard metope using sound wave, effectively reduce house internal noise, and use modularity
Design, enables to construct more convenient, then effective lifting construction efficiency.
Description of the drawings
Fig. 1 is that structural schematic diagram when individually absorbing sound module is arranged in sound absorber in a kind of broadband room of the utility model.
Fig. 2 is that structure when two sound absorption modules are arranged in sound absorber in a kind of broadband room of the utility model is shown
It is intended to.
Fig. 3 is that structure when three sound absorption modules are arranged in sound absorber in a kind of broadband room of the utility model is shown
It is intended to.
Fig. 4 is axonometric drawing when the utility model sound absorption module is provided through channel.
Fig. 5 is the sound absorbing performance comparative graph of the utility model full-frequency sound absorption body and conventional sound absorber.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
In conjunction with shown in Fig. 1 to Fig. 4, sound absorber in a kind of broadband room in the present embodiment, including constitute empty inside house
Between interface, and be fixed on the sound absorption module of the adjacent interfaces intersection at interface, sound absorption module includes babinet 1, and setting
Sound absorber in babinet 1, babinet 1 have one side wall to be provided with entrant sound face 11, and signified interface includes mainly 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 in conjunction with 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.
In conjunction with shown in Fig. 1 and Fig. 2, the sound absorption module in the present embodiment can also be as needed, and one is arranged 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
The cross section of plate, babinet 1 could be provided as rectangle, rectangular, triangle, polygon, circle, semicircle or 1/4 circle.
Room noise is controlled in order to facilitate adjustment, is provided in entrant sound face 11 for covering sound penetrating hole 12 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 when noise reduction, the protection on the entrant sound face 11 of corresponding sound absorption module can also 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 except sound face 11 is insulated against sound setting, and the noise that babinet 1 is flowed into this is decreased sufficiently.
In addition, in conjunction with shown in Fig. 4, in order to facilitate the laying of circuit when interior decoration and pipeline in the present embodiment, absorb sound mould
Group is provided through channel 13, and air hose, transmission of electricity pipeline or fire main are equipped in channel 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
It is all higher than 200mm, the acting frequency range 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, in conjunction with Fig. 5
It is shown, the sound absorber (40cm x 50cm x 647.5cm) of same volume is positioned in reverberation chamber and is 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 with have
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 measured 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 especially obtains the sound absorption effect of bigger in entire frequency band in low-frequency range.
Present invention also provides a kind of noise reduction furniture, including above-mentioned sound absorption module, and matched with sound absorption module
Furniture, furniture can refer to putting for the module that absorbs sound in the above embodiment, which is set to 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 utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With novel principle, and it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on the explanation herein,
Those skilled in the art would not require any inventive effort the other specific implementation modes that can associate the utility model,
These modes are fallen within the scope of protection of the utility model.
Claims (10)
1. sound absorber in a kind of broadband room, including constitute the interface of house inner space, it is characterised in that：Further include fixing
In the sound absorption module of the adjacent interfaces intersection at the interface, the sound absorption module includes babinet, and is set to 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 range 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 set as perforating gypsum board, perforated metal, perforation plank or non-woven fabrics；The sound absorber is set as 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 round to be set to rectangle, rectangular, 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 setting is 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
It is equipped with channel, air hose, transmission of electricity pipeline or fire main are equipped in the channel.
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 matched furniture of the sound absorption module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820109617.0U CN207852306U (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 |
|---|---|---|---|
| CN201820109617.0U CN207852306U (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 |
|---|---|
| CN207852306U true CN207852306U (en) | 2018-09-11 |
Family
ID=63416034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820109617.0U Active CN207852306U (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) | CN207852306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074560A (en) * | 2018-01-22 | 2018-05-25 | 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 CN201820109617.0U patent/CN207852306U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074560A (en) * | 2018-01-22 | 2018-05-25 | 深圳可朗声科技有限公司 | Sound absorber and its noise reduction furniture in a kind of broadband room |
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