CN205609212U - Sound absorption panel and soft compound sound absorbing structure who resonates unit combination - Google Patents
Sound absorption panel and soft compound sound absorbing structure who resonates unit combination Download PDFInfo
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- CN205609212U CN205609212U CN201620434549.6U CN201620434549U CN205609212U CN 205609212 U CN205609212 U CN 205609212U CN 201620434549 U CN201620434549 U CN 201620434549U CN 205609212 U CN205609212 U CN 205609212U
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- sound absorption
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- resonating member
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Abstract
The utility model relates to a sound absorption technical field especially relates to a sound absorption panel and soft compound sound absorbing structure who resonates unit combination. This complex sound absorbing structure includes the sound absorbing structure base member and sets up sound absorption panel on the sound absorbing structure base member, the sound absorbing structure base member with the sound absorption panel surrounds and forms back of the body chamber, the sound absorption be equipped with on the panel a plurality of with the cell hole that back of the body chamber is link up, be equipped with soft resonance unit among the cell hole. This complex sound absorbing structure not only has simple structure, easy processing preparation, and light in weight, simple to operate, the lower advantage of cost, the frequency band within range at the broad has good sound absorption effect moreover.
Description
Technical field
This utility model relates to sound absorption structure technical field, particularly relates to a kind of sound absorption panel with soft
The compound sound-absorption structural that matter resonating member combines.
Background technology
At present, traditional perforated plate resonance absorption structure, its perforated plate there is envelope behind each hole
Close cavity, be equivalent to many in parallel " Helmholtz " resonators, when incidence wave frequency and
When the resonant frequency of system is consistent, i.e. produce resonance.Now, the air at perforated plate hole is past
Multiplex vibration, its amplitude reaches maximum, and friction and damping are also maximum, and acoustic energy is because of viscous loss
Be changed into heat energy, i.e. acoustic energy dissipates and reaches maximum.This is the advantage of perforated plate resonance absorption structure.
But this structure also has the shortcoming that it is intrinsic, its major defect is: the selectivity of frequency is strong,
Namely sound sucting band is narrow, near resonant frequency, only just can have preferable sound absorbing capabilities, and inclined
From resonant frequency, its acoustically effective is substantially deteriorated.
In order to widen effective wide band sound absorption of monolayer porous plate acoustic adsorption device, prior art is mainly led to
Cross two kinds of methods to realize.One of which method is to use the microperforated panel soundabsorbing construction of MULTILAYER COMPOSITE,
But multi-layer compound structure significantly increases the complexity of structure, too increases material and cost simultaneously,
Practical engineering application is also limited by space length；Another kind of method is at microperforated panel
Sound-absorbing material is placed at the back side, but the sound-absorbing material increased can bring the secondary pollution of structure.
Further, it is also possible to reduce penetration hole diameter further, according to the theory of Mr. Ma Dayou, when
When the penetration hole diameter of microperforated panel is less than 0.1 millimeter, it is expected to reach the frequency of porous plate acoustic adsorption device
The band limit.But Conventional machining methods cannot realize the processing of ultramicropore aperture microperforated panel,
The such as laser boring of other processing methods, because of the increase of punch density, production cost also can increase
Add, be not suitable for batch production.Such as, Chinese Academy of Sciences's acoustics expert to develop a kind of tube bank micro-
Sound absorbent perforated structure, this structural change low frequency performance of microperforated panel, too increase and wear
The wide band sound absorption of AND DEWATERING FOR ORIFICE STRUCTURE, but structure is relative complex, and processing and fabricating is relatively difficult.
Utility model content
(1) to solve the technical problem that
The purpose of this utility model is to provide a kind of absorb sound panel and answering that soft resonating member is combined
Closing sound absorption structure, solve the perforated plate resonance absorption structure of prior art, structure is complicated, is difficult to
Processing and fabricating, cost is high, the problem of acoustically effective difference.
(2) technical scheme
In order to solve above-mentioned technical problem, this utility model provides a kind of sound absorption panel with soft
The compound sound-absorption structural that resonating member combines, including sound absorption structure matrix and be arranged on described suction
Sound absorption panel on acoustic form matrix, described sound absorption structure matrix and described sound absorption panel surround shape
Becoming back of the body chamber, described sound absorption panel is provided with the cell orifice that some and described back of the body chamber is through, described unit
Hole is provided with soft resonating member.
Further, described sound absorption structure matrix includes base plate and be connected with described base plate
Circle side plate.
Specifically, described base plate is rigid body or elastomer.
Specifically, described soft resonating member is spherical soft resonating member.
Specifically, described sound absorption panel is microperforated panel, Microfracture plate or porous material plate.
Further, described sound absorption panel is evenly equipped with multiple micro-sound-absorbing hole, described micro-sound-absorbing hole
Identical for diameter or that diameter is different circular ports.
Further, described sound absorption panel is evenly equipped with multiple micro-sound-absorbing hole, described micro-sound-absorbing hole
For circular port, square opening, diamond hole, hex hole, fish scale shape hole or slotted eye.
Specifically, described soft resonating member is made up of latex, silica gel or composite.
(3) beneficial effect
Technique scheme of the present utility model has the advantage that
The composite sound absorbing knot that the sound absorption panel that this utility model provides is combined with soft resonating member
Structure, combines soft resonating member with sound absorption panel, then this sound absorption panel is arranged on sound absorption
Compound sound-absorption structural is constituted on structural matrix.The compound sound-absorption structural that this utility model provides, energy
Enough in the case of not increasing sound absorption structure complexity, on sound absorption panel, reasonable Arrangement is soft
Resonating member, makes soft resonating member play a role in resonance with sound absorption panel, it is achieved to inhale simultaneously
The broadband sound absorption of sound panel.The sound absorption panel that this utility model provides is combined with soft resonating member
Compound sound-absorption structural, the advantage not only possessing microperforated panel soundabsorbing construction, and simple in construction,
Being easily worked making, lightweight, easy for installation, cost is relatively low, and at wider frequency band model
All there is in enclosing good acoustically effective.
Accompanying drawing explanation
Fig. 1 be this utility model embodiment sound absorption panel be combined with soft resonating member be combined
Sound absorption structure schematic diagram；
Fig. 2 be this utility model embodiment sound absorption panel be combined with soft resonating member be combined
Sound absorption structure sectional view.
In figure: 1: sound absorption structure matrix；2: sound absorption panel；3: micro-sound-absorbing hole；4: soft
Resonating member；5: base plate；6: side plate；7: back of the body chamber.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below
The accompanying drawing in this utility model embodiment will be combined, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is of the present utility model one
Section Example rather than whole embodiments.Based on the embodiment in this utility model, this
It is every other that field those of ordinary skill is obtained on the premise of not making creative work
Embodiment, broadly falls into the scope of this utility model protection.
As shown in Figure 1-2, sound absorption panel and the soft resonating member that this utility model embodiment provides
In conjunction with compound sound-absorption structural, including sound absorption structure matrix 1 and be arranged on described sound absorption structure
Sound absorption panel 2 on matrix 1, described sound absorption structure matrix 1 surrounds shape with described sound absorption face 2 plate
Becoming back of the body chamber 7, described sound absorption panel 2 is provided with the cell orifice that some and described back of the body chamber 7 is through, institute
State and cell orifice is provided with soft resonating member 4.
The compound sound-absorption structural that this utility model embodiment provides, by described sound absorption panel 2
On some soft resonating member 4 are set, utilize the micropore sound absorption principle and soft of described sound absorption panel 2
The resonance principle of matter resonating member 4, in the case of not increasing sound absorption structure complexity, reaches
To the purpose widening microperforated panel wide band sound absorption.
Specifically, described soft resonating member 4 uses spherical soft resonating member, due to ball
The structure of the soft resonating member of shape is relatively easy, has saved processing cost and material cost, and
The structure in described back of the body chamber 7 does not has strict form to limit, and therefore has sizable motility.
Wherein said soft resonating member 4 is made up of latex, silica gel or composite.
Furthermore, it is understood that described sound absorption structure matrix include base plate 5 and with described base plate 5 phase
A circle side plate 6 even, wherein said base plate 5 is rigid body or elastomer.
Specifically, described sound absorption panel 2 is microperforated panel, Microfracture plate or porous material plate,
Required sound absorption panel can be chosen according to sound sucting band scope and application places.
In this utility model embodiment, described sound absorption panel 2 uses microperforated panel.
Specifically, described microperforated panel is provided with multiple micro-sound-absorbing hole 3, described multiple micro-suction
Acoustic aperture 3 can be uniform or random be arranged on described microperforated panel, described micro-sound-absorbing hole 3 can
To be set to the circular port that diameter is identical or diameter is different, or described micro-sound-absorbing hole 3 can also set
It is set to square opening, diamond hole, hex hole, fish scale shape hole or slotted eye.
Specifically, the described cell orifice being arranged on described microperforated panel and described soft resonance
Unit 4 is suitable, and described soft resonating member 4 can be fixed on by stickup or other forms
In described cell orifice, what described cell orifice can be uniform or random is arranged on described microperforated panel.
In this utility model embodiment, the described micro-sound-absorbing hole 3 on described microperforated panel is uniform
Arrange, and described micro-sound-absorbing hole 3 uses the circular port that diameter is identical.On described microperforated panel
Described cell orifice is also evenly arranged so that described micro-sound-absorbing hole 3 be arranged in described cell orifice
Soft resonating member 4 formed interval arrange, beneficially broadband sound absorption.
Additionally, according to the actual requirements, described microperforated panel be combined with described soft resonating member
Compound sound-absorption structural, can use single layer structure, bilayer or multiple structure, use double
Layer or multiple structure can expand the wide band sound absorption of sound absorption structure further.
In sum, essence of the present utility model is by described soft resonating member 4 and described suction
Sound panel 2 combines, then it is compound that sound absorption panel 2 is arranged on sound absorption structure matrix 1 composition
Sound absorption structure.This technical scheme of the present utility model, it is possible to ensureing that sound absorbing capabilities is not by shadow
On the premise of sound, alleviate complexity and the weight of existing microperforated panel soundabsorbing construction so that
The compound sound-absorption structural that sound absorption panel described in the utility model is combined with soft resonating member has
Simple in construction, it is easy to processing, cheap, easy for installation, advantage that acoustically effective is good.
In description of the present utility model, it should be noted that except as otherwise noted, term " on ",
Orientation or the position relationship of the instruction such as D score, "left", "right", " interior ", " outward " are based on attached
Orientation shown in figure or position relationship, be for only for ease of description this utility model and simplify description,
Rather than indicate or imply that the device of indication or element must have specific orientation, with specifically
Azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clear and definite regulation
And restriction, term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it is possible to
It it is fixing connection, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected,
It can also be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary.
For the ordinary skill in the art, visual concrete condition understands that above-mentioned term is in this reality
With the concrete meaning in novel.
It is last it is noted that above example is only in order to illustrate the technical solution of the utility model,
It is not intended to limit；Although this utility model being described in detail with reference to previous embodiment,
It will be understood by those within the art that: it still can be to described in foregoing embodiments
Technical scheme modify, or wherein portion of techniques feature is carried out equivalent；And this
A little amendments or replacement, do not make the essence of appropriate technical solution depart from this utility model and respectively implement
The spirit and scope of example technical scheme.
Claims (8)
1. the compound sound-absorption structural that the panel that absorbs sound is combined with soft resonating member, its feature exists
In: include sound absorption structure matrix and be arranged on the sound absorption panel on described sound absorption structure matrix,
Described sound absorption structure matrix and described sound absorption panel surround formation back of the body chamber, and described sound absorption panel sets
There is the cell orifice that some and described back of the body chamber is through, described cell orifice is provided with soft resonating member.
The compound suction that sound absorption panel the most according to claim 1 is combined with soft resonating member
Acoustic form, it is characterised in that: described sound absorption structure matrix include base plate and with described base plate phase
A circle side plate even.
The compound suction that sound absorption panel the most according to claim 2 is combined with soft resonating member
Acoustic form, it is characterised in that: described base plate is rigid body or elastomer.
The compound suction that sound absorption panel the most according to claim 1 is combined with soft resonating member
Acoustic form, it is characterised in that: described soft resonating member is spherical soft resonating member.
The compound suction that sound absorption panel the most according to claim 1 is combined with soft resonating member
Acoustic form, it is characterised in that: described sound absorption panel is microperforated panel, Microfracture plate or porous material
Plate.
The compound suction that sound absorption panel the most according to claim 1 is combined with soft resonating member
Acoustic form, it is characterised in that: it is evenly equipped with multiple micro-sound-absorbing hole on described sound absorption panel, described micro-
Sound-absorbing hole is the circular port that diameter is identical or diameter is different.
The compound suction that sound absorption panel the most according to claim 1 is combined with soft resonating member
Acoustic form, it is characterised in that: it is evenly equipped with multiple micro-sound-absorbing hole on described sound absorption panel, described micro-
Sound-absorbing hole is circular port, square opening, diamond hole, hex hole, fish scale shape hole or slotted eye.
The compound suction that sound absorption panel the most according to claim 1 is combined with soft resonating member
Acoustic form, it is characterised in that: described soft resonating member is by latex, silica gel or composite system
Become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620434549.6U CN205609212U (en) | 2016-05-12 | 2016-05-12 | Sound absorption panel and soft compound sound absorbing structure who resonates unit combination |
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| CN201620434549.6U CN205609212U (en) | 2016-05-12 | 2016-05-12 | Sound absorption panel and soft compound sound absorbing structure who resonates unit combination |
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| CN205609212U true CN205609212U (en) | 2016-09-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707060A (en) * | 2018-12-28 | 2019-05-03 | 西安交通大学 | A kind of continuous flaring gradient aperture basis of dual porosity rate sound absorber and its application |
-
2016
- 2016-05-12 CN CN201620434549.6U patent/CN205609212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707060A (en) * | 2018-12-28 | 2019-05-03 | 西安交通大学 | A kind of continuous flaring gradient aperture basis of dual porosity rate sound absorber and its application |
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