CN206726758U - Sound absorber and its system - Google Patents
Sound absorber and its system Download PDFInfo
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- CN206726758U CN206726758U CN201720545177.9U CN201720545177U CN206726758U CN 206726758 U CN206726758 U CN 206726758U CN 201720545177 U CN201720545177 U CN 201720545177U CN 206726758 U CN206726758 U CN 206726758U
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- sound absorber
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Abstract
The utility model provides a kind of sound absorber and its system, is related to environment-friendly materials technical field.A kind of sound absorber, including the body of variable diameters bloop is provided with, the opening of bloop is arranged at the surface of body, and the surface of body is provided with sound-absorbing material, and sound-absorbing material includes CNT.The device has good acoustically effective, simple in construction, and processing is simple, and cost is cheap, and profile is various, in light weight, is readily transported, and use range is wide.A kind of Absorption System, including above-mentioned sound absorber.The sound absorption efficiency of sound absorber is improved, strengthens the acoustically effective of sound absorber, can be applied to the fields such as road noise reduction.
Description
Technical field
Environment-friendly materials technical field is the utility model is related to, in particular to a kind of sound absorber and its system.
Background technology
City noise pollution is one of four overall situation public hazards, is the main object of 21 century environment pollution control.In China
Urban environment noise pollution has turned into one of main Environmental Problems of interference people's normal life.The whole nation existing more than 3/4ths
Urban traffic trunk line noise average more than 70dB.In city noise source, traffic noise accounts for 46.18%, and social life is made an uproar
Sound accounts for 28.19%, and construction noise pollution accounts for 5.11%, and man-made noise accounts for 8.13%, and other noises account for 10.19%.But traffic is made an uproar
Ratio shared by sound has the trend risen year by year, reaches more than 60% in recent years.In some American-European developed countries and regions, this
Ratio is up to more than 70%.Constantly expand increasingly busy, the traffic noise on urban roads with urban transportation with the scale in city
Problem can gradually aggravate and turn into an important factor for restricting human settlement environment in city Quality advance.
The influence that noise is lived to people is mainly reflected in the sleep quality for influenceing people, and cause insomnia, agitation, the mind are not
It is peaceful etc., the health of body can be then influenceed for a long time.So we should strengthen the attention to noise, the solution for reducing noise is found out
Approach.
Utility model content
The purpose of this utility model is to provide a kind of sound absorber, and the device has good acoustically effective, knot
Structure is simple, and processing is simple, and cost is cheap, and profile is various, in light weight, is readily transported, and use range is wide.
Another object of the present utility model is to provide a kind of Absorption System, and the system includes above-mentioned sound absorber, improves
The sound absorption efficiency of sound absorber, strengthen the acoustically effective of sound absorber, can be applied to the fields such as road noise reduction.
What embodiment of the present utility model was realized in：
A kind of sound absorber, including the body of variable diameters bloop is provided with, the opening of bloop is arranged at the table of body
Face, the surface of body are provided with sound-absorbing material, and sound-absorbing material includes CNT.
Further, in the utility model preferred embodiment, bloop includes multiple inclined holes, and multiple inclined holes are with array
Mode arrange.
Further, in the utility model preferred embodiment, in multiple inclined holes, the axle of two inclined holes of arbitrary neighborhood
There is different directions to line.
Further, in the utility model preferred embodiment, bloop is blind hole.
Further, in the utility model preferred embodiment, sound absorber also includes the sound insulation body being connected with body,
There is cavity between body and sound insulation body.
Further, in the utility model preferred embodiment, sound-absorbing material also includes plastic foam and/or cement.
Further, in the utility model preferred embodiment, CNT includes single-walled carbon nanotube, double-walled carbon is received
Any one in mitron, multi-walled carbon nanotube.
Further, in the utility model preferred embodiment, body is platy structure or block structure or tubulose knot
Structure or flocculent structure.
Further, in the utility model preferred embodiment, body is made up of copper or aluminum.
A kind of Absorption System, including above-mentioned sound absorber.
The beneficial effect of the utility model embodiment：
The utility model provides a kind of sound absorber and its system, and a kind of sound absorber includes being provided with variable diameters bloop
And the body of sound-absorbing material.Sound-absorbing material is arranged at body surface by the utility model, on the one hand plays the effect of sqouynd absorption lowering noise,
On the other hand simplify structure, reduce the thickness of sound absorber, increase practicality.Sound-absorbing material uses CNT, utilizes it
Structure, the effect of sqouynd absorption lowering noise is realized, while CNT has the characteristics of wear-resisting, in light weight, intensity is high, good heat conductivity,
Acoustically effective is improved, expands the application of sound absorber, applied in adverse circumstances.Bloop is variable diameters, utilizes sound wave
With the conversion of air interphase interaction and energy and kinetic energy, heat energy, strengthen the acoustically effective of sound absorber.
A kind of Absorption System, the sound absorption efficiency of sound absorber is improved, strengthen the acoustically effective of sound absorber, can be applied to
The fields such as road noise reduction.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation at the first visual angle of the sound absorber that the utility model embodiment 1 provides；
Fig. 2 is the structural representation at the second visual angle of the sound absorber that the utility model embodiment 1 provides；
Fig. 3 is the structural representation for the sound absorber that the utility model embodiment 2 provides；
Fig. 4 is the structural representation for the sound absorber that the utility model embodiment 3 provides.
Icon：100- sound absorbers；110- bodies；111- first surfaces；112- second surfaces；120- bloops；121-
Opening；130- sound-absorbing materials；200- sound absorbers；300- sound absorbers；310- sound insulation bodies；320- cavitys.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to explanation, the orientation of the instruction such as term " on ", " under ", " interior ", " outer " in description of the present utility model
Or position relationship be based on orientation shown in the drawings or position relationship, or the utility model product using when usually put
Orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model
Limitation.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Below in conjunction with the accompanying drawings, some embodiments of the present utility model are elaborated.In the case where not conflicting, under
Feature in the embodiment and embodiment stated can be mutually combined.
Embodiment 1
Fig. 1 is refer to, the present embodiment provides a kind of sound absorber 100, including is provided with the body of variable diameters bloop 120
110, the opening 121 of bloop 120 is arranged at the surface of body 110, and the surface of body 110 is provided with sound-absorbing material 130, sound absorption
Material 130 includes CNT.
In the present embodiment, the body 110 of sound absorber 100 is platy structure, is easily installed in metope, ground etc..For
Meet different needs, in other embodiment of the present utility model, body 110 can also be block structure or tubular structure or
Flocculent structure, the utility model are not limited it.
Specifically, the body 110 of sound absorber 100 has first surface 111, second table relative with first surface 111
Face 112.Body 110 is provided with some bloops 120, and the opening 121 of bloop 120 is arranged at the first surface 111 of body 110.
In order to improve erasure effect, in the present embodiment, bloop 120 is variable diameters.Specifically, bloop 120 is by being arranged at first
The opening 121 on surface 111 forms to the extension of second surface 112.The aperture that bloop 120 extends along direction differs.At this
In the other embodiment of utility model, bloop 120 extends along the aperture all same in direction.The utility model is not limited it
It is fixed.
Preferably, such as Fig. 1, the bearing of trend that the aperture of bloop 120 extends along opening 121 to second surface 112 is gradual
Reduce.When sound is passed in bloop 120, the vibration of sound wave promotes air molecule, because the aperture of bloop 120 gradually subtracts
Small, air compression produces heat, converts kinetic energy into heat energy, and heat energy is delivered to body 110, continues to pass by body 110,
Consume the energy of sound wave so that sound reduces.Reach the purpose of sound absorption using thermoacoustic effect.In other realities of the present utility model
Apply in example, the varying aperture of bloop 120 can with the present embodiment on the contrary, or aperture from large to small after, then become big.This reality
It is not limited with new.
In the present embodiment, bloop 120 is blind hole.Specifically, the opening 121 of bloop 120 is arranged at first surface
111, the bottom hole of bloop 120 is arranged between first surface 111 and second surface 112.Blind hole makes sound can not penetrate body
110, the sound not being completely eliminated stays in the side of first surface 111, body 110 is played the effect of sound insulation.It is new in this practicality
In the other embodiment of type, bloop 120 can be through hole, and the utility model is not limited it.
In order that sound absorber 100 has more preferable acoustically effective, sound-absorbing material 130 is provided with the surface of body 110.Sound absorption
Material 130 leans on the porous material for making SATT from a surface to internal many tiny unlimited ducts, or is absorbed sound by resonant interaction
Flexible material absorb sound wave.
In the present embodiment, sound-absorbing material 130 includes CNT.CNT is in light weight as monodimension nanometer material,
Hexagonal structure connection is perfect, has good heat transfer property.In other embodiment of the present utility model, sound-absorbing material 130
Including plastic foam or cement, the utility model is not limited it.There is many Minute pores, quality inside plastic foam
Gently, there is sound-absorbing sound insulation value.Cement is powdery hydraulicity inorganic gel materials, and intensity is high, cement sound absorption material prepared therefrom
Material 130 has high density, high rigidity, the characteristic of high hole rate, and with preferably bending, shock resistance.It is easily installed,
Climate does not restrict, and use range is wide, can both make outdoor architecture, can also make indoor set, plays a part of attractive in appearance and noise reduction.
In the present embodiment, carbon nano-tube material is in particular double-walled carbon nano-tube, in other implementations of the present utility model
In example, carbon nano-tube material can be single-walled carbon nanotube or multi-walled carbon nanotube, and the utility model is not limited it.
Fig. 2 is refer to, specifically, sound-absorbing material 130 is arranged at first surface 111.In the present embodiment, sound-absorbing material
130 are arranged at first surface 111 using the method for coating.The method of coating includes：The surface of body 110 is cleaned and dried, cooling is cold
But after, body 110 is uniformly coated with fluid sealant, then by carbon nano-tube material uniform fold on body 110.Preferably, carbon is made
Nanotube is covered in the inwall of bloop 120, strengthens acoustically effective.In other embodiment of the present utility model, sound-absorbing material
130 with the connected mode of body 110 can use other, and chemically or physically method, the utility model are not limited it.
Embodiment 2
Fig. 3 is refer to, the present embodiment provides a kind of sound absorber 200.
The difference of sound absorber 200 and sound absorber 100 essentially consists in：
In the present embodiment, bloop 120 includes multiple inclined holes, and multiple inclined holes are arranged in first surface in array fashion
111.In the present embodiment, in multiple inclined holes, the axial line of two inclined holes of arbitrary neighborhood has different directions.Inclined hole can be with
The sound wave of different azimuth is received, eliminates the sound in different orientation, strengthens the acoustically effective of sound absorber 200.It is new in this practicality
In the other embodiment of type, the direction of the axial line of inclined hole can be all identical, can also otherwise arrange, this practicality is new
Type is not limited it.
In order to preferably reach the purpose of sound absorption using thermoacoustic effect, in the present embodiment, the body of sound absorber 200
110 have good heat conductivility, specifically, body 110 is made by copper.In other embodiment of the present utility model,
Body 110 can be made by the material of the good heat conductivities such as aluminium, gold, carbon, and the utility model is not limited it.
Represented to simplify, non-mentioned position in the present embodiment, refer to corresponding contents in embodiment 1.
Embodiment 3
Fig. 4 is refer to, the present embodiment provides a kind of sound absorber 300.
The difference of sound absorber 300 and sound absorber 200 essentially consists in：
Sound absorber 300 includes the sound insulation body 310 being connected with body 110, has cavity between body 110 and sound insulation body 310
320.Cavity 320 is mainly used in eliminating the sound for being transferred to sound insulation body 310 from body 110.In the present embodiment, cavity 320 is
Spheroid, improve acoustically effective.In other embodiment of the present utility model, cavity 320 can be cuboid etc., and this practicality is new
Type is not limited it.
Specifically, the material of sound insulation body 310 is identical with the material of body 110, and in the present embodiment, sound insulation body 310 and sheet
Body 110 is formed in one, and in other embodiment of the present utility model, sound insulation body 310 can be detachably connected with body 110,
When in the larger environment of noise, selectivity connects sound insulation body 310.The utility model is not limited it.
The present embodiment also provides a kind of heat-exchange system (not shown), including sound absorber 300 and heat abstractor (not shown).
Because sound absorber 300 utilizes thermoacoustic effect, i.e., the energy conversion of sound wave is reached into the purpose of sound absorption into heat energy, dispersed in time
The heat of sound absorber 300, it is favorably improved the radiating effect of sound absorber 300.Therefore, heat abstractor is used to reduce sound absorption dress
Put 300 temperature.
In the present embodiment, heat abstractor is cooling device, absorbs the heat in sound absorber 300 by cooling medium
Amount, and discharge sound absorber 300.In other embodiment of the present utility model, heat abstractor can be fan etc., and this practicality is new
Type is not limited it.
In the present embodiment, cooling device, the common apparatus that fan is this area, the utility model are not limited it
It is fixed.
Represented to simplify, non-mentioned position in the present embodiment, refer to corresponding contents in embodiment 2.
In summary, sound-absorbing material 130 is arranged at the surface of body 110 by the utility model, on the one hand plays sqouynd absorption lowering noise
Effect, on the other hand simplify structure, the thickness of sound absorber 300 is reduced, increase practicality.Sound-absorbing material 130 uses carbon
Nanotube, using its structure, the effect of sqouynd absorption lowering noise is realized, while CNT has that wear-resisting, in light weight, intensity is high, heat conduction
The characteristics of performance is good, acoustically effective is improved, expand the application of sound absorber 300, applied in adverse circumstances.Bloop
120 be variable diameters, using sound wave and air interphase interaction and the conversion of energy and kinetic energy, heat energy, strengthens sound absorber 300
Acoustically effective.Bloop 120 uses inclined hole, receives the sound wave of different azimuth, eliminates the sound in different orientation, enhancing sound absorption dress
Put 300 acoustically effective.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of sound absorber, it is characterised in that the body including being provided with variable diameters bloop, the opening of the bloop are set
The surface of the body is placed in, the surface of the body is provided with sound-absorbing material, and the sound-absorbing material includes CNT.
2. sound absorber according to claim 1, it is characterised in that the bloop includes multiple inclined holes, the multiple
Inclined hole is arranged in array fashion.
3. sound absorber according to claim 2, it is characterised in that in the multiple inclined hole, two institutes of arbitrary neighborhood
The axial line for stating inclined hole has different directions.
4. sound absorber according to claim 1, it is characterised in that the bloop is blind hole.
5. according to the sound absorber described in any one of Claims 1-4, it is characterised in that the sound absorber also includes and institute
The sound insulation body of body connection is stated, there is cavity between the body and the sound insulation body.
6. sound absorber according to claim 1, it is characterised in that the sound-absorbing material also include plastic foam and/or
Cement.
7. the sound absorber according to claim 1 or 6, it is characterised in that the CNT include single-walled carbon nanotube,
Any one in double-walled carbon nano-tube, multi-walled carbon nanotube.
8. sound absorber according to claim 1, it is characterised in that the body is platy structure or block structure or pipe
Shape structure or flocculent structure.
9. sound absorber according to claim 8, it is characterised in that the body is made up of copper or aluminum.
10. a kind of Absorption System, it is characterised in that including the sound absorber as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545177.9U CN206726758U (en) | 2017-05-16 | 2017-05-16 | Sound absorber and its system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545177.9U CN206726758U (en) | 2017-05-16 | 2017-05-16 | Sound absorber and its system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206726758U true CN206726758U (en) | 2017-12-08 |
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ID=60512286
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720545177.9U Expired - Fee Related CN206726758U (en) | 2017-05-16 | 2017-05-16 | Sound absorber and its system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206726758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107025904A (en) * | 2017-05-16 | 2017-08-08 | 姚斌斌 | Sound absorber and its system |
-
2017
- 2017-05-16 CN CN201720545177.9U patent/CN206726758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107025904A (en) * | 2017-05-16 | 2017-08-08 | 姚斌斌 | Sound absorber and its system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20200516 |