CN209229985U - A kind of air-conditioning noise elimination air channel structure of anechoic room - Google Patents
A kind of air-conditioning noise elimination air channel structure of anechoic room Download PDFInfo
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- CN209229985U CN209229985U CN201821947827.3U CN201821947827U CN209229985U CN 209229985 U CN209229985 U CN 209229985U CN 201821947827 U CN201821947827 U CN 201821947827U CN 209229985 U CN209229985 U CN 209229985U
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- noise elimination
- air duct
- air
- elimination air
- acoustic board
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Abstract
The utility model discloses a kind of air-conditioning noise elimination air channel structures of anechoic room, including the steel plate that insulates against sound, noise elimination air duct, air outlet, inclined-plane and the environmentally friendly cotton that absorbs sound windward, noise elimination air duct is offered vertically in the sound insulation steel plate, noise elimination air duct draught area is from top to bottom sequentially reduced, opening area is greater than noise elimination air duct bottom opening area at the top of the noise elimination air duct, inclined inclined-plane windward is equipped in the noise elimination air duct, filled with the environmentally friendly cotton that absorbs sound in the sound insulation steel plate, the surrounding inner wall in the noise elimination air duct is from top to bottom equipped with the acoustic board that muti-piece punching rate is gradually reduced, the noise elimination air duct and the vertical plane boundary position of sound insulation steel plate offer air outlet；The utility model is compared with existing air-conditioning air entering and returning mode, the advantages that noise elimination air duct of the utility model setting does not influence anechoic room acoustic efficiency and air-conditioning using effect, and outlet air is uniformly, smooth, noise elimination effect is good, non-maintaining.
Description
Technical field
The utility model relates to acoustical laboratory field, the air-conditioning noise elimination air channel structure of specifically a kind of anechoic room.
Background technique
Anechoic room is to meet acoustics index, does not allow to install window, becoming to have very much with this indoor location air-conditioning system must
It wants.Usual one kind of mode of installation air-conditioning is that air-conditioning internal machine is directly mounted in anechoic room at present, thus influences whether to disappear
The free found field of sound chamber, it is another kind of be by air conditioning wind pipe by wind introduce anechoic room top surface (not wadding inside the wedge of top surface one,
Thus empty wedge introduces wind indoor, and sound absorption wedge is a kind of special soundabsorbing textured material for the field that absorbs sound by force, and use is porous
Property material molding cutting, make tapered or wedgelike sound absorber, it is strong indeformable), will cause in this way air inlet it is unsmooth, influence sky
Adjust effect.
Therefore, for such issues that, it would be desirable to one kind can to air inlet noise reduction while can keep entering the wind again it is smooth
Uniform noise elimination structure.
Utility model content
The purpose of this utility model is to provide a kind of air-conditioning noise elimination air channel structures of anechoic room, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions:
A kind of air-conditioning noise elimination air channel structure of anechoic room, including sound insulation steel plate, noise elimination air duct, air outlet, windward inclined-plane and
Absorb sound environmentally friendly cotton, offers noise elimination air duct in the sound insulation steel plate vertically, and noise elimination air duct draught area is from top to bottom successively
Reduce, opening area is greater than noise elimination air duct bottom opening area at the top of the noise elimination air duct, is equipped with inclination in the noise elimination air duct
Inclined-plane windward, filled with the environmentally friendly cotton that absorbs sound in the sound insulation steel plate, the surrounding inner wall in the noise elimination air duct is from top to bottom equipped with
The vertical plane boundary position of the acoustic board that muti-piece punching rate is gradually reduced, the noise elimination air duct and sound insulation steel plate offers outlet air
Mouthful.
As a further solution of the present invention: the acoustic board includes level-one perforated acoustic board, second level perforation sound absorption
Plate and three-level perforated acoustic board, level-one perforated acoustic board, the ring of second level perforated acoustic board and three-level perforated acoustic board from top to bottom
Shape is distributed on the inner wall in noise elimination air duct, aperture on level-one perforated acoustic board, second level perforated acoustic board and three-level perforated acoustic board
Rate is sequentially reduced.
As a further solution of the present invention, it is described sound insulation steel plate be mounted on anechoic room two diagonal corners or
At two inclines at the top of person's anechoic room.
The top opening in the noise elimination air duct enters the wind phase with external air-conditioning as a further solution of the present invention,
Even.
It is offered on the lateral wall of the sound insulation steel plate as a further solution of the present invention, multiple for installing
Screw hole, screw hole bottom is not connected to noise elimination air duct.
Compared with prior art, the utility model has the beneficial effects that the utility model and existing air-conditioning air entering and returning side
Formula is compared, and the noise elimination air duct of the utility model setting does not influence anechoic room acoustic efficiency and air-conditioning using effect, and outlet air is uniform, flows
Freely, the advantages that noise elimination effect is good, non-maintaining.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the air-conditioning noise elimination air channel structure of anechoic room.
Fig. 2 is the cross-sectional view of the air-conditioning noise elimination air channel structure vertical direction of anechoic room.
Fig. 3 is the structural schematic diagram of the air-conditioning noise elimination air channel structure top view of anechoic room.
In figure: sound insulation steel plate 10, noise elimination air duct 11, air outlet 12, windward inclined-plane 13, level-one perforated acoustic board 20, second level
Perforated acoustic board 30, three-level perforated acoustic board 40, absorb sound environmentally friendly cotton 50.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1
Please refer to Fig. 1~3, in the utility model embodiment, a kind of air-conditioning noise elimination air channel structure of anechoic room, including sound insulation
Steel plate 10, noise elimination air duct 11, air outlet 12, windward inclined-plane 13 and the environmentally friendly cotton 50 that absorbs sound, open up vertically in the sound insulation steel plate 10
There is noise elimination air duct 11,11 draught area of noise elimination air duct is from top to bottom sequentially reduced, the 11 top opening face of noise elimination air duct
Product is greater than 11 bottom opening area of noise elimination air duct, is equipped with inclined inclined-plane 13 windward, the sound insulation steel in the noise elimination air duct 11
Filled with the environmentally friendly cotton 50 that absorbs sound in plate 10, the surrounding inner wall in the noise elimination air duct 11 is from top to bottom equipped with muti-piece punching rate and gradually subtracts
Small acoustic board, the noise elimination air duct 11 and the vertical plane boundary position of sound insulation steel plate 10 offer air outlet 12.
The acoustic board includes level-one perforated acoustic board 20, second level perforated acoustic board 30 and three-level perforated acoustic board 40, and one
Grade perforated acoustic board 20, the annular spread of second level perforated acoustic board 30 and three-level perforated acoustic board 40 from top to bottom are in noise elimination air duct
On 11 inner wall, percent opening successively subtracts on level-one perforated acoustic board 20, second level perforated acoustic board 30 and three-level perforated acoustic board 40
Small, when having just enter into 11 top opening of noise elimination air duct due to air-conditioner wind, wind speed is very fast, larger to the windage on inclined-plane 13 windward, therefore
The biggish level-one perforated acoustic board 20 of punching rate is set and carries out noise reduction, as wind speed gradually mitigates in noise elimination air duct 11, sound absorption
The punching rate of plate is also gradually being successively decreased, so that windage of the windage on inclined-plane 13 windward is identical, the wind speed of air outlet 12 is equal
It is even consistent.
The working principle of the utility model is: in use, the steel plate 10 that insulates against sound to be mounted on to two diagonal corners of anechoic room
Or at two inclines at the top of anechoic room, the top opening in noise elimination air duct 11 is connected with external air-conditioning air inlet, air-conditioner wind is by disappearing
Sound air duct 11 enters in anechoic chamber, the friction noise that the built-in environmentally friendly cotton 50 of sound absorption of multiple muffler plate cooperations can generate windage
Good absorption is carried out, the different acoustic board of setting punching rate can guarantee the windage on logical inclined-plane 13 windward on noise elimination air duct 11
Power is identical, so that air-conditioner wind is uniform from 12 wind speed of air outlet, can drop the requirement that low wind noise guarantees indoor back noise.
Embodiment 2
The present embodiment the difference from embodiment 1 is that:
The sound insulation steel plate 10 is mounted at two inclines at the top of the two diagonal corners or anechoic room of anechoic room.
The top opening in the noise elimination air duct 11 is connected with external air-conditioning air inlet.
Multiple screw holes for installation, screw hole bottom and noise elimination air duct 11 are offered on the lateral wall of the sound insulation steel plate 10
It is not connected to.
Working principle of the utility model is: the screw hole of setting is used for convenient for the fixed sound insulation steel plate 10 of aunt, but simultaneously cannot
Screw hole and noise elimination air duct 11 are run through, prevent screw hole from destroying the whole soundproof effect in noise elimination air duct 11.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of air-conditioning noise elimination air channel structure of anechoic room, including sound insulation steel plate (10), noise elimination air duct (11), air outlet (12),
Inclined-plane (13) and the environmentally friendly cotton (50) that absorbs sound windward, offer noise elimination air duct (11), feature in the sound insulation steel plate (10) vertically
It is, noise elimination air duct (11) draught area is from top to bottom sequentially reduced, and noise elimination air duct (11) the top opening area is big
In noise elimination air duct (11) bottom opening area, the noise elimination air duct (11) is interior to be equipped with inclined inclined-plane windward (13), the sound insulation
Filled with the environmentally friendly cotton (50) that absorbs sound in steel plate (10), the surrounding inner wall of the noise elimination air duct (11) is from top to bottom equipped with muti-piece perforation
The vertical plane boundary position of the acoustic board that rate is gradually reduced, the noise elimination air duct (11) and sound insulation steel plate (10) offers air outlet
(12)。
2. the air-conditioning noise elimination air channel structure of anechoic room according to claim 1, which is characterized in that the acoustic board includes one
Grade perforated acoustic board (20), second level perforated acoustic board (30) and three-level perforated acoustic board (40), level-one perforated acoustic board (20), two
Grade perforated acoustic board (30) and three-level perforated acoustic board (40) annular spread from top to bottom on the inner wall of noise elimination air duct (11),
Percent opening is sequentially reduced on level-one perforated acoustic board (20), second level perforated acoustic board (30) and three-level perforated acoustic board (40).
3. the air-conditioning noise elimination air channel structure of anechoic room according to claim 1, which is characterized in that the sound insulation steel plate (10)
It is mounted at two inclines at the top of the two diagonal corners or anechoic room of anechoic room.
4. the air-conditioning noise elimination air channel structure of anechoic room according to claim 1 to 3, which is characterized in that the noise elimination wind
The top opening in road (11) is connected with external air-conditioning air inlet.
5. the air-conditioning noise elimination air channel structure of anechoic room according to claim 1 to 3, which is characterized in that the sound insulation steel
Multiple screw holes for installation are offered on the lateral wall of plate (10), screw hole bottom is not connected to noise elimination air duct (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821947827.3U CN209229985U (en) | 2018-11-23 | 2018-11-23 | A kind of air-conditioning noise elimination air channel structure of anechoic room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821947827.3U CN209229985U (en) | 2018-11-23 | 2018-11-23 | A kind of air-conditioning noise elimination air channel structure of anechoic room |
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| Publication Number | Publication Date |
|---|---|
| CN209229985U true CN209229985U (en) | 2019-08-09 |
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ID=67504392
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821947827.3U Active CN209229985U (en) | 2018-11-23 | 2018-11-23 | A kind of air-conditioning noise elimination air channel structure of anechoic room |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432355A (en) * | 2020-12-03 | 2021-03-02 | 珠海格力电器股份有限公司 | Volute assembly, air supply assembly and air conditioning system |
| CN113153825A (en) * | 2021-02-07 | 2021-07-23 | 李卫东 | A silencing device and fan for fan |
-
2018
- 2018-11-23 CN CN201821947827.3U patent/CN209229985U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432355A (en) * | 2020-12-03 | 2021-03-02 | 珠海格力电器股份有限公司 | Volute assembly, air supply assembly and air conditioning system |
| CN112432355B (en) * | 2020-12-03 | 2022-06-28 | 珠海格力电器股份有限公司 | Volute component, air supply component and air conditioning system |
| CN113153825A (en) * | 2021-02-07 | 2021-07-23 | 李卫东 | A silencing device and fan for fan |
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