CN206281183U - A kind of noise-reducing structure and the air-conditioner with the noise-reducing structure - Google Patents
A kind of noise-reducing structure and the air-conditioner with the noise-reducing structure Download PDFInfo
- Publication number
- CN206281183U CN206281183U CN201621357542.5U CN201621357542U CN206281183U CN 206281183 U CN206281183 U CN 206281183U CN 201621357542 U CN201621357542 U CN 201621357542U CN 206281183 U CN206281183 U CN 206281183U
- Authority
- CN
- China
- Prior art keywords
- panel
- noise
- layer
- reducing structure
- dividing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model is related to a kind of noise-reducing structure, including：First panel；Second panel, the second panel is connected with the first panel, and receiving space is formed between the second panel and the first panel；Interstitital texture, the interstitital texture is arranged in the receiving space and can be used in noise reduction, from the first panel side to the second panel side, successively including the first foaming layer, strengthening layer and the second foaming layer, the strengthening layer is acoustic damping materials layer to the interstitital texture.Further relate to a kind of air-conditioner with the noise-reducing structure.The interstitital texture being composited by three-decker is conducive to improving noise reduction and the heat-insulating property of the noise-reducing structure, reduces the thickness of the noise-reducing structure, reduces transport, installation cost；And the noise-reducing structure can be directly used as the wallboard of air-conditioner set so that complete noise-reducing structure can be formed outside air-conditioner set, be conducive to strengthening the muting function of air-conditioner set.
Description
Technical field
The utility model is related to air-conditioning technical field, and in particular to a kind of noise-reducing structure and the air-conditioning with the noise-reducing structure
Device.
Background technology
The refrigerating capacity or heating capacity of large-size air conditioning unit are higher, and treatment air quantity is big, is used in general large-size air conditioning unit
The parts such as high-power blower fan, motor, compressor.In the process of running, the gearing friction of power all parts higher and
The influence of the factors such as resonant interaction so that air-conditioner set would generally produce larger noise.
In some mega projects, in order to reach the effect of noise reduction, generally acoustical panel is mounted on four walls of unit.Due to
The not of uniform size of the wall of different units four, structure are different, and mounting the operation of acoustical panel generally needs to expend substantial amounts of manpower, make and
Efficiency of assembling is relatively low.And, bottom wall and other air-conditioner sets for being blocked or hindering by internal part for air-conditioner set
Wallboard, the operation for mounting acoustical panel is difficult to carry out, and leads to not form complete absorbing sound and lowering noise in the whole periphery of air-conditioner set
Structure so that noise reduction is not good.Additionally, the acoustical panel of attachment occupies the limited use space in air-conditioner set inside, it is unfavorable for
Improve the cleaning and aesthetic property of air-conditioner set indoor design.Another method for reducing air-conditioner set noise is in air-conditioner set
Increase noise reduction section, and special silencing means is set, noise is run with the whole machine for reducing air-conditioner set, but this kind of method causes sky
Volume increase is adjusted, cost of manufacture is too high.
Utility model content
In order to solve the above mentioned problem of prior art presence, the utility model provides a kind of noise-reducing structure and disappears with this
The air-conditioner of sound structure.Purpose is, there is provided can be used directly as air-conditioner set wallboard, the sky with stronger noise reduction capability
Adjust device noise-reducing structure.
The technical scheme that the utility model is used for：
A kind of noise-reducing structure, including：
First panel；
Second panel, the second panel is connected with the first panel, the second panel and the first panel
Between form receiving space；
Interstitital texture, the interstitital texture is arranged in the receiving space and can be used in noise reduction, the interstitital texture
From the first panel side to the second panel side, include the first foaming layer, strengthening layer and the second foaming layer, institute successively
It is acoustic damping materials layer to state strengthening layer.
Preferably, the strengthening layer is made up of porous sound absorbing material, and the strengthening layer sound-absorption coefficient more than described the
The sound-absorption coefficient of one foaming layer and the sound-absorption coefficient of second foaming layer.
Preferably, the strengthening layer is polyurethane fiber abatvoix or string abatvoix.
Preferably, the thickness size of first foaming layer, the strengthening layer and second foaming layer is successively decreased successively.
Preferably, the ratio between thickness of first foaming layer, the strengthening layer and second foaming layer is (2.5-3)：
1.5：(0.5-1).
Preferably, the first panel and the second panel are U-shaped platy structure, and the U-shaped of the first panel is opened
The U-shaped opening of mouth and the second panel is oppositely arranged, and the second panel can cover at the outside of the first panel；
The first panel and the second panel are collectively forming the hollow platy structure with the receiving space and both ends open.
Preferably, dividing plate and second also is installed including first and dividing plate is installed；
The first installation dividing plate is arranged between the strengthening layer and first foaming layer, for separating the reinforcing
Layer and first foaming layer；
The second installation dividing plate is arranged between the strengthening layer and second foaming layer, for separating the reinforcing
Layer and second foaming layer.
Preferably, the first installation dividing plate and the second installation dividing plate are heat zinc coating plate or at least side coating
There is the heat zinc coating plate of sound-absorbing plant fiber layer.
Preferably, when the first panel is the U-shaped platy structure, the both sides being oppositely arranged of the first panel
Being provided with wall can install dividing plate by described the with described first installation the first chute that be adapted of dividing plate, described first
One chute is slidably connected with the first panel；
Being provided with the two side being oppositely arranged of the first panel can be adapted with the described second installation dividing plate
The second chute, it is described second installation dividing plate is slidably connected by second chute and the first panel.
A kind of air-conditioner, including described noise-reducing structure.
The beneficial effects of the utility model are：
1st, the simple structure of the noise-reducing structure, manufacturing cost is relatively low, in can directly substituting existing air-conditioner set shell
Any one place's wall so that complete noise-reducing structure can be formed outside air-conditioner set, so as to improve the noise reduction of air-conditioner set
Erasure effect；Operation without carrying out mounting acoustical panel on air-conditioner set shell wall, is conducive to simplifying installation step, reduces people
Work cost, and avoid the acoustical panel that attachment is set from occupying the use space inside air-conditioner set, improve air-conditioner set indoor design
Cleaning and aesthetic property.
2nd, the interstitital texture includes the first foaming layer, the second foaming layer and is located in strengthening layer therebetween, and existing
There is the foamed board for absorbing sound and lowering noise to compare, three layers of compound interstitital texture are conducive to improving the sound-deadening properties of the noise-reducing structure
Can, reduce the thickness of the noise-reducing structure, so that reduce the overall volume and weight of the air-conditioner set with the noise-reducing structure,
Reduce cost of transportation.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of noise-reducing structure described in the utility model；
Fig. 2 is the front view of noise-reducing structure described in the utility model；
Fig. 3 is the partial structurtes enlarged drawing at the A of noise-reducing structure described in the utility model.
In figure：1st, first panel；11st, the first chute；12nd, the second chute；2nd, second panel；3rd, interstitital texture；31st, first
Foaming layer；32nd, strengthening layer；33rd, the second foaming layer；4th, first dividing plate is installed；5th, second dividing plate is installed；6th, sponge.
Specific embodiment
It is to reach technological means and effect that predetermined purpose is taken for the utility model is expanded on further, below in conjunction with attached
Figure and preferred embodiment, specific embodiment, structure, feature and its effect to the foundation present utility model application, specifically
It is bright as after.In the following description, in one or more embodiments special characteristic, structure or feature can be by any suitable form groups
Close.
As Figure 1-3, this specific embodiment is related to a kind of noise-reducing structure, including：
First panel 1；
Second panel 2, the second panel 2 is connected with the first panel 1, the second panel 2 and described first
Receiving space is formed between panel 1；
Interstitital texture 3, the interstitital texture 3 is arranged in the receiving space and can be used in noise reduction, the filling knot
Structure 3 is from the side of the first panel 1 to the side of the second panel 2, successively including the first foaming layer 31, strengthening layer 32 and second
Foaming layer 33, the strengthening layer 32 is acoustic damping materials layer.First foaming layer 31 and second foaming layer 33 are by foaming
Material is made, intensive in it to be provided with a large amount of small pore space structures.The foaming layer 33 of first foaming layer 31 and second is equal
Effect with sound-absorbing and insulation.The first panel 1 and the second panel 2 are preferably made by Metal plate.
Compared with individual layer acoustical panel, the noise-reducing structure with multi-layer compound structure has more preferable noise reduction.Use
When, each part inside an air-conditioner set towards generation noise in the first panel 1 and the second panel 2
Set, and another is then set towards external environment.By the first panel 1 towards as a example by the noise source inside air-conditioner set,
When noise is reached at the first panel 1, a part of noise is reflected by the first panel 1, returns in the air-conditioner set
Portion, reduces noise intensity, and remainder noise penetrates the first panel 1, and enters first foaming layer 31, sound wave and institute
The a large amount of pore space structures stated in the first foaming layer 31 rub, and part acoustic energy is converted into heat energy dissipation, so as to further reduce
Noise intensity.
Afterwards, the sound wave not being completely absorbed reaches the strengthening layer 32, and the strengthening layer 32 is acoustic damping materials layer, more
Body ground, the material that the strengthening layer 32 can have good reflection performance by acoustic material, sound-absorbing material or to sound wave is made.
That is, described strengthening layer 32 itself can have the ability for making intensity of acoustic wave decay or reflection sound wave, when the strengthening layer 32 makes
Intensity of acoustic wave is decayed, then further reduced through the noise intensity after the strengthening layer 32；When the strengthening layer 32 will
A large amount of sound waves are reflected back first foaming layer 31, then sound wave can be absorbed by first foaming layer 31 again, also may be used
Effectively reduce by the noise intensity of the strengthening layer 32.Preferably, the strengthening layer 32 is made up of porous sound absorbing material, and institute
The sound-absorption coefficient of strengthening layer 32 is stated more than the sound-absorption coefficient of first foaming layer 31 and the sound-absorbing system of second foaming layer 33
Number.Being provided with beneficial to the integral thickness for reducing the interstitital texture 3 for the strengthening layer 32 with stronger sound absorbing power, makes institute
The volume for stating noise-reducing structure is smaller, and assembling more facilitates, and advantageously reduces taking up room for air-conditioner set, and reduction is transported into
This.The strengthening layer 32 set into loose structure can also play good heat insulation effect so that the interstitital texture 3 with it is existing
There is foaming acoustical panel to compare, with better heat-insulating property, for the outer machine of the refrigeration system of air-conditioner set, can significantly raise
The efficiency of unit, under equal energy consumption, greatly improves refrigeration.It is further preferred that the strengthening layer 32 is polyurethane
Fiber abatvoix or string abatvoix.
Second foaming layer 33, the sound-absorbing principle of second foaming layer 33 are entered by the noise of the strengthening layer 32
It is identical with first foaming layer 31, by after the absorption of second foaming layer 33, the noise that non-complete attenuation disappears
Reach at the second panel 2, which part sound wave can also be reflected back second foaming layer 33 and entered by the second panel 2
Row double absorption.By the above first panel 1, the interstitital texture 3 with three-layer composite structure and second face
The multiple Noise Reduction of plate 2, can be greatly lowered, by the intensity of the noise of the noise-reducing structure so that described disappear
Sound structure has good noise reduction capability.
Used as a kind of preferably implementation method, in the interstitital texture 3, the material layer being in contact with noise at first is designed as
With maximum thickness, so that intensity noise higher can effectively be decayed in first foaming layer 31.With institute
Noise source of the first panel 1 inside air-conditioner set is stated, external environment, first foaming are faced with the second panel 2
The layer 31, strengthening layer 32 and the thickness size of second foaming layer 33 are successively decreased successively.Preferably, first foaming layer
31st, the ratio between the strengthening layer 32 and the thickness of second foaming layer 33 are (2.5-3)：1.5：(0.5-1).
Used as a kind of preferably implementation method, the first panel 1 and the second panel 2 are U-shaped platy structure, institute
The U-shaped opening of the U-shaped opening and the second panel 2 of stating first panel 1 is oppositely arranged, and the second panel 2 can cover and set
In the outside of the first panel 1；More specifically, the first panel 1 include be sequentially connected the first folded plate, the first main body and
Second folded plate, first folded plate, the first main body and the second folded plate composition U-shaped platy structure；The second panel 2 is included successively
Connected the 3rd folded plate, the second main body and the 4th folded plate, the 3rd folded plate, the second main body and the 4th folded plate also constitute U-board
Shape structure.When the second panel 2 covers at the outside of the first panel 1, the 3rd folded plate and first folded plate
Be arranged in parallel, and the 3rd folded plate is arranged at the outside of first folded plate, the 3rd folded plate and first folded plate it
Between form space, sponge 6 or binding material can be filled with the space.4th folded plate is flat with second folded plate
Row is set, and the 4th folded plate is arranged at the outside of second folded plate, between the 4th folded plate and second folded plate
Space is formed, sponge 6 or binding material are also filled with the space.Now, the first panel 1 and the second panel 2
Encirclement forms the hollow platy structure of both ends open, and the hollow cavity of the hollow tabular inside configuration is the receiving sky
Between.It should be noted that described herein " both ends open ", refers to the two ends being oppositely arranged on the hollow platy structure
Due to not blocked, the hatch frame that formation is connected with the receiving cavity.The both ends open can be used for the appearance
Receive in cavity, the both sides of the strengthening layer 32 irrigate expanded material, so as to directly form described first in the receiving space
Foaming layer 31 and second foaming layer 33, it is to avoid the behaviour of processing and the first foaming layer 31 of assembling and the second foaming layer 33
Make, be conducive to simplifying the manufacturing procedure of the noise-reducing structure, save material cost, reduce cost of labor.And, the foaming of perfusion
Material can play a part of to be adhesively fixed instead of binding agent so that the first panel 1 by first foaming layer 31 with
The strengthening layer 32 is mutually adhesively fixed, and the second panel 2 is mutually be bonded with the strengthening layer 32 by second foaming layer 33
It is fixed, so as to form the overall noise-reducing structure.
Used as a kind of preferably implementation method, the noise-reducing structure also includes that first installs the installation dividing plate of dividing plate 4 and second
5；
The first installation dividing plate 4 is arranged between the strengthening layer 32 and first foaming layer 31, for separating
State strengthening layer 32 and first foaming layer 31；
The second installation dividing plate 5 is arranged between the strengthening layer 32 and second foaming layer 33, for separating
State strengthening layer 32 and second foaming layer 33.
Set described first and dividing plate 4 and the second installation dividing plate 5 are installed, be conducive to manufacturing the mistake of the noise-reducing structure
Cheng Zhong, the quick set location for determining different material layer, makes manufacturing process more quickness and high efficiency, and, add first peace
Dress dividing plate 4 and the second installation dividing plate 5 are conducive to increasing the structural strength of the noise-reducing structure.Preferably, first peace
Fill dividing plate 4 and the second installation dividing plate 5 is heat zinc coating plate or at least side is coated with the galvanizing of sound-absorbing plant fiber layer
Plate.The heat zinc coating plate has preferable structural strength, is conducive to improving the overall construction intensity and structure of the noise-reducing structure
Stability, and heat zinc coating plate has good decay resistance, service life is more long.In at least one side of the heat zinc coating plate
Coating sound-absorbing plant fiber layer so that described first installs dividing plate 4 and described second installs dividing plate 5 with above beneficial effect
Outside, it may have sound absorption, can further strengthen the sound-deadening and noise-reducing performance of the noise-reducing structure.
As a kind of preferably implementation method, when the first panel 1 is the U-shaped platy structure, first face
The first chute 11 that can be adapted with the described first installation dividing plate 4 is provided with the two side being oppositely arranged of plate 1, it is described
First installation dividing plate 4 is slidably connected by first chute 11 and the first panel 1；
Being provided with the two side being oppositely arranged of the first panel 1 can mutually fit with the described second installation dividing plate 5
The second chute 12 matched somebody with somebody, the second installation dividing plate 5 is slidably connected by second chute 12 and the first panel 1.
More specifically, in the two side being oppositely arranged of the first panel 1, being set described in one on each described side wall
First chute 11, two first chutes 11 on two side are oppositely arranged and are parallel to each other.Similarly, the first panel
In 1 two side being oppositely arranged, second chute 12, two second chutes are provided with each described side wall
12 are oppositely arranged and are parallel to each other.The mode of being slidably connected makes the described first installation for installing dividing plate 4 and the second installation dividing plate 5
It is simpler, and can be installed or removed according to actual needs, make the use of the noise-reducing structure more flexible.It is described
The concrete structure of the first chute 11 and second chute 12 can be the U-shaped being provided projectingly to the outside of the side wall where it
Groove, as shown in Figure 3.
The simple structure of the noise-reducing structure, manufacturing cost is relatively low, in can directly substituting existing air-conditioner set shell
Wall at any one, or directly use multiple noise-reducing structures composition air-conditioner set shells so that air-conditioner set external energy
Complete noise-reducing structure is enough formed, so as to improve the noise-reduction effect of air-conditioner set；Using the noise-reducing structure without in sky
The operation for carrying out mounting acoustical panel on unit casing wall is adjusted, is conducive to simplifying installation step, reduce cost of labor, and avoid attachment
The acoustical panel of setting occupies the use space inside air-conditioner set, and the interstitital texture 3 with noise reduction, insulation effect is arranged at
Inside the noise-reducing structure, it is convenient to clean, and the cleaning and aesthetic property of air-conditioner set indoor design can be improved.
This specific embodiment further relates to a kind of air-conditioner, including described noise-reducing structure, and the noise-reducing structure can be used
Make any side shell wall in the shell of the air-conditioner, or, the monolithic case of air-conditioner is constituted using the noise-reducing structure,
Air-conditioner inside is set to produce each part of noise to be completely wrapped in the monolithic case, so as to significantly reduce the operation of air-conditioner
Noise, makes the air-conditioner have more preferable Jing Yin performance.
Operation principle of the present utility model is described below：
The utility model is to design one kind to effectively improve foamed board noise reduction capability, while improving the effect of heat insulation of foamed board
Noise-reducing structure.The noise-reducing structure is mainly used at the outer machine of air-conditioner set refrigeration system.
The utility model solve technical problem be：
Using triple isolation methods of foamed material-urethane fibers abatvoix-foamed material, the noise reduction drop of noise-reducing structure is improved
Make an uproar ability.
The utility model have the advantage that for：
1. triple sound insulation and noise reduction materials are used, effectively isolates noise source with external environment condition, greatly improve air-conditioner set
Noise reduction capability.
2. foamed board structure is only with two flangings (U-shaped platy structure).U-shaped card slot structure is set at flanging, so can be with
It is used to set the first installation dividing plate 4 and the second installation dividing plate 5, to form three separate spaces.In addition, using the shape of both ends open
Formula, is both easy to perfusion, again can material-saving.Bring bigger economic benefit.
3. unit overall weight can be substantially reduced, cost of transportation is reduced, installation risk is reduced, is highly suitable for hoisting machine
Group.By the respective ratio of rationally three layers of control, intensity, noise reduction, heat-insulated optimal water allocation scheme can be obtained.
To sum up, skilled addressee readily understands that, on the premise of not conflicting, above-mentioned each advantageous manner can from
By combination, superposition.
The above, better embodiment only of the present utility model not does any formal to the utility model
Limitation.Anyone can draw other various forms of products under enlightenment of the present utility model, however, in its shape or knot
Make any change on structure, it is every with technical scheme identical or similar to the present application, all fall within protection of the present utility model
Within the scope of.
Claims (10)
1. a kind of noise-reducing structure, it is characterised in that including：
First panel (1)；
Second panel (2), the second panel (2) is connected with the first panel (1), the second panel (2) with it is described
First panel forms receiving space between (1)；
Interstitital texture (3), the interstitital texture (3) is arranged in the receiving space and can be used in noise reduction, the filling knot
Structure (3) is from the first panel (1) side to the second panel (2) side, successively including the first foaming layer (31), strengthening layer
(32) and the second foaming layer (33), the strengthening layer (32) is acoustic damping materials layer.
2. noise-reducing structure according to claim 1, it is characterised in that the strengthening layer (32) is by porous sound absorbing material system
Into, and the sound-absorption coefficient of the strengthening layer (32) is more than the sound-absorption coefficient of first foaming layer (31) and second foaming layer
(33) sound-absorption coefficient.
3. noise-reducing structure according to claim 2, it is characterised in that the strengthening layer (32) is polyurethane fiber sound-absorbing
Plate or string abatvoix.
4. the noise-reducing structure according to claim any one of 1-3, it is characterised in that first foaming layer (31), described
Strengthening layer (32) and the thickness size of second foaming layer (33) are successively decreased successively.
5. noise-reducing structure according to claim 4, it is characterised in that first foaming layer (31), the strengthening layer
And the ratio between the thickness of second foaming layer (33) is (2.5-3) (32)：1.5：(0.5-1).
6. according to claim 1-3, the noise-reducing structure described in 5 any one, it is characterised in that the first panel (1) and described
Second panel (2) is U-shaped platy structure, the U-shaped opening of the first panel (1) and the U-shaped opening of the second panel (2)
It is oppositely arranged, and the second panel (2) can cover at the outside of the first panel (1)；The first panel (1) and institute
State second panel (2) and be collectively forming the hollow platy structure with the receiving space and both ends open.
7. according to claim 1-3, the noise-reducing structure described in 5 any one, it is characterised in that also install dividing plate (4) including first
Dividing plate (5) is installed with second；
First installation dividing plate (4) is arranged between the strengthening layer (32) and first foaming layer (31), for separating
The strengthening layer (32) and first foaming layer (31)；
Second installation dividing plate (5) is arranged between the strengthening layer (32) and second foaming layer (33), for separating
The strengthening layer (32) and second foaming layer (33).
8. noise-reducing structure according to claim 7, it is characterised in that described first installs dividing plate (4) and described second pacifies
Dress dividing plate (5) is heat zinc coating plate or at least side is coated with the heat zinc coating plate of sound-absorbing plant fiber layer.
9. noise-reducing structure according to claim 7, it is characterised in that when the first panel (1) is U-shaped platy structure
When, being provided with the two side being oppositely arranged of the first panel (1) can be adapted with the described first installation dividing plate (4)
The first chute (11), described first is installed dividing plate (4) and is slided by first chute (11) and the first panel (1) and connect
Connect；
Being provided with the two side being oppositely arranged of the first panel (1) can mutually fit with the described second installation dividing plate (5)
The second chute (12) matched somebody with somebody, described second installs dividing plate (5) is slided by second chute (12) with the first panel (1)
Connection.
10. a kind of air-conditioner, it is characterised in that including the noise-reducing structure described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621357542.5U CN206281183U (en) | 2016-12-12 | 2016-12-12 | A kind of noise-reducing structure and the air-conditioner with the noise-reducing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621357542.5U CN206281183U (en) | 2016-12-12 | 2016-12-12 | A kind of noise-reducing structure and the air-conditioner with the noise-reducing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206281183U true CN206281183U (en) | 2017-06-27 |
Family
ID=59076086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621357542.5U Active CN206281183U (en) | 2016-12-12 | 2016-12-12 | A kind of noise-reducing structure and the air-conditioner with the noise-reducing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206281183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705403A (en) * | 2016-12-12 | 2017-05-24 | 珠海格力电器股份有限公司 | Silencing structure and air conditioner with same |
| CN108105131A (en) * | 2018-02-12 | 2018-06-01 | 山西巨龙风机有限公司 | A kind of low noise local ventilation machine host of multilayer isolation |
-
2016
- 2016-12-12 CN CN201621357542.5U patent/CN206281183U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705403A (en) * | 2016-12-12 | 2017-05-24 | 珠海格力电器股份有限公司 | Silencing structure and air conditioner with same |
| CN108105131A (en) * | 2018-02-12 | 2018-06-01 | 山西巨龙风机有限公司 | A kind of low noise local ventilation machine host of multilayer isolation |
| CN108105131B (en) * | 2018-02-12 | 2024-05-10 | 山西巨龙风机有限公司 | Low-noise local ventilator host computer of multilayer isolation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202249622U (en) | Ventilating noise-elimination window for transformer station | |
| CN106705403A (en) | Silencing structure and air conditioner with same | |
| CN2356165Y (en) | Noise eliminating fan | |
| CN206281183U (en) | A kind of noise-reducing structure and the air-conditioner with the noise-reducing structure | |
| CN102853515A (en) | Broadband sound absorption air tube and air opening | |
| CN206972377U (en) | The vibration and noise reducing structure and its movable square compartment of generator case | |
| CN107170438A (en) | A kind of resistive filled type sound-absorbing composite board of density gradient | |
| CN102384571A (en) | Silencing structure of air-conditioning compressor | |
| CN202835696U (en) | Wide band sound absorption wind pipe and air inlet | |
| CN210658083U (en) | Transparent ventilation noise eliminator | |
| CN206034673U (en) | Acoustic wall of making an uproar falls | |
| CN205331629U (en) | Energy -conserving tuber pipe of making an uproar falls | |
| CN202299528U (en) | Silencing and sound-insulating integrated device | |
| CN203223016U (en) | Dry ice washing mold house | |
| CN207672782U (en) | Assembled acoustics room | |
| CN202024455U (en) | Return air silencing device | |
| CN202417878U (en) | Air conditioner and sound insulation cotton of air conditioner compressor | |
| CN206160316U (en) | Structure of making an uproar, outdoor unit casing and air condensing units fall in air condensing units | |
| CN210563205U (en) | Industrial factory building air inlet noise elimination passageway that noise reduction effect is good | |
| CN219763056U (en) | Sound insulation curtain | |
| CN211599796U (en) | Silencing heat-insulating ventilation pipe | |
| CN212613135U (en) | Novel heat-insulating energy-saving acoustical panel | |
| CN201121403Y (en) | Internally concealed air intake soundproofing channel | |
| CN203363441U (en) | Totally-closed acoustic absorption air pipe | |
| CN215519326U (en) | Wall body heat preservation device with waterproof sound insulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |