CN206598605U - A kind of full range acoustical cotton - Google Patents
A kind of full range acoustical cotton Download PDFInfo
- Publication number
- CN206598605U CN206598605U CN201720263023.0U CN201720263023U CN206598605U CN 206598605 U CN206598605 U CN 206598605U CN 201720263023 U CN201720263023 U CN 201720263023U CN 206598605 U CN206598605 U CN 206598605U
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- absorbing layer
- sound absorbing
- density
- sound
- acoustical cotton
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Abstract
The utility model belongs to acoustical cotton technical field, specifically related to a kind of full range acoustical cotton, including the first sound absorbing layer from top to bottom stacked gradually, second sound absorbing layer, 3rd sound absorbing layer, 4th sound absorbing layer and the 5th sound absorbing layer, first sound absorbing layer, the density of second sound absorbing layer and the 3rd sound absorbing layer increases successively, 3rd sound absorbing layer, 4th sound absorbing layer, the density of 5th sound absorbing layer is reduced successively, the density of second sound absorbing layer is 1.5~4 times of the first sound absorbing layer density, 3rd sound absorbing layer density is 2~10 times of the density of the second sound absorbing layer, 3rd sound absorbing layer density is 2~10 times of the 4th sound absorbing layer density, the density of 4th sound absorbing layer is 1.5~4 times of the 5th sound absorbing layer density.Its bigger low frequency absorption coefficient of the density of acoustical cotton also increases within the specific limits, therefore the first sound absorbing layer, the second sound absorbing layer and the 3rd sound absorbing layer density increased fit structure successively, medium-high frequency noise and low frequency noise can be effectively absorbed, the effect of full range sound-absorbing is reached.
Description
Technical field
The utility model belongs to acoustical cotton technical field, and in particular to a kind of full range acoustical cotton.
Background technology
Lift noise, everybody is not strange.Noise is all affecting our operating efficiency all the time, sleep, hearing
And health.Some acoustical materials can be used away from noise, people.Acoustical material is different according to its use function, can be with
It is divided into sound-absorbing material and acoustic material.The noisy sense that sound-absorbing is mainly the reflection of sound to be solved and produced, sound-absorbing material can be with
The reflected energy of the incident source of sound of decay, so as to reach the fidelity effect to original sound source.Sound insulation mainly solve the transmission of sound and
Main body is set to feel noisy sense in space, sound insulation cotton material can decay the transmission potential of incident source of sound, so as to reach that main body is empty
Between rest state.
For sound-absorbing material, its species has a lot, common are glass fibre acoustical cotton, rock wool, rubber and plastic acoustical cotton and gathers
Ester fiber acoustical cotton, and for the acoustical cotton of single structure, its sound-absorbing frequency range is narrower, can only have well to the sound of specific frequency
Absorption effect, preferable performance is only had to its corresponding frequency range according to its density.
Utility model content
The purpose of this utility model is：In view of the shortcomings of the prior art there is provided a kind of frequency acoustical cotton, can effectively inhale
Low frequency noise and medium-high frequency noise are received in modeling.
To achieve these goals, the utility model is adopted the following technical scheme that：
A kind of full range acoustical cotton, including the first sound absorbing layer, the second sound absorbing layer, the 3rd sound-absorbing from top to bottom stacked gradually
Layer, the 4th sound absorbing layer and the 5th sound absorbing layer, the density of first sound absorbing layer, the second sound absorbing layer and the 3rd sound absorbing layer is successively
Increase, the 3rd sound absorbing layer, the 4th sound absorbing layer, the density of the 5th sound absorbing layer are reduced successively, the density of second sound absorbing layer
For 1.5~4 times of the first sound absorbing layer density, the 3rd sound absorbing layer density is 2~10 times of the density of the second sound absorbing layer, described
3rd sound absorbing layer density is 2~10 times of the 4th sound absorbing layer density, and the density of the 4th sound absorbing layer is the 5th sound absorbing layer density
1.5~4 times.
As a kind of improvement of full range acoustical cotton described in the utility model, first sound absorbing layer is polyester fiber sound-absorbing
Cotton layer, the aperture of its micropore is 15~20 μm.
As a kind of improvement of full range acoustical cotton described in the utility model, second sound absorbing layer is polyester fiber sound-absorbing
Cotton layer, the aperture of its micropore is 5~10 μm.
As a kind of improvement of full range acoustical cotton described in the utility model, the 3rd sound absorbing layer is polyester fiber sound-absorbing
Cotton layer, the aperture of its micropore is 1~2.5 μm.
As a kind of improvement of full range acoustical cotton described in the utility model, the 4th sound absorbing layer is polyester fiber sound-absorbing
Cotton layer, the aperture of its micropore is 5~10 μm.
As a kind of improvement of full range acoustical cotton described in the utility model, second sound absorbing layer is polyester fiber sound-absorbing
Cotton layer, the aperture of its micropore is 15~20 μm.
The beneficial effects of the utility model are：A kind of full range acoustical cotton, including from top to bottom stacked gradually are provided
One sound absorbing layer, the second sound absorbing layer, the 3rd sound absorbing layer, the 4th sound absorbing layer and the 5th sound absorbing layer, first sound absorbing layer, second inhale
Sound-absorbing layer and the density of the 3rd sound absorbing layer increase successively, the 3rd sound absorbing layer, the 4th sound absorbing layer, the 5th sound absorbing layer density according to
Secondary to reduce, the density of second sound absorbing layer is 1.5~4 times of the first sound absorbing layer density, and the 3rd sound absorbing layer density is the
2~10 times of the density of two sound absorbing layers, the 3rd sound absorbing layer density is 2~10 times of the 4th sound absorbing layer density, the described 4th
The density of sound absorbing layer is 1.5~4 times of the 5th sound absorbing layer density.Its bigger low frequency absorption of the density of acoustical cotton within the specific limits
Coefficient also increases, therefore first sound absorbing layer, the second sound absorbing layer and the 3rd sound absorbing layer density increased fit structure successively,
Medium-high frequency noise and low frequency noise can be effectively absorbed, the effect of full range sound-absorbing is reached.And medium-high frequency noise is with higher
Through characteristic, the 4th sound absorbing layer and the further centering high frequency noise of the 5th sound absorbing layer of setting are absorbed, and are improved full range and are inhaled
The effect of sound.And because the 3rd sound absorbing layer density is larger, its hardness is also larger so that have inside full range acoustical cotton compared with
Big intensity, and first sound absorbing layer, the second sound absorbing layer be symmetrical arranged with the 4th sound absorbing layer, the 5th sound absorbing layer respectively, makes institute
The 3rd sound absorbing layer both sides stress balance is stated, deformation during acoustical cotton use is effectively prevented.
Brief description of the drawings
Fig. 1 is result schematic diagram of the present utility model.
Wherein, 1. first sound absorbing layer, 2. second sound absorbing layers, 3. the 3rd sound absorbing layers, 4. the 4th sound absorbing layers, 5. the 5th sound-absorbings
Layer.
Embodiment
Further detailed is made to the utility model and its advantage below in conjunction with embodiment and Figure of description
Describe in detail bright, still, embodiment of the present utility model is not limited thereto.
As shown in figure 1, a kind of full range acoustical cotton, including the first sound absorbing layer 1, the second sound absorbing layer from top to bottom stacked gradually
2nd, the 3rd sound absorbing layer 3, the 4th sound absorbing layer 4 and the 5th sound absorbing layer 5, first sound absorbing layer 1, the second sound absorbing layer 2 and the 3rd
The density of sound absorbing layer 3 increases successively, and the 3rd sound absorbing layer 3, the 4th sound absorbing layer 4, the density of the 5th sound absorbing layer 5 are reduced successively,
The density of second sound absorbing layer 2 is 1.5~4 times of the density of the first sound absorbing layer 1, and the density of the 3rd sound absorbing layer 3 is the second suction
2~10 times of the density of sound-absorbing layer 2, the density of the 3rd sound absorbing layer 3 is 2~10 times of the density of the 4th sound absorbing layer 4, and the described 4th inhales
The density of sound-absorbing layer 4 is 1.5~4 times of the density of the 5th sound absorbing layer 5.Its bigger low frequency absorption of the density of acoustical cotton within the specific limits
Coefficient also increases, therefore increased cooperation is tied successively for first sound absorbing layer 1, the second sound absorbing layer 2 and the density of the 3rd sound absorbing layer 3
Structure, can effectively absorb medium-high frequency noise and low frequency noise, reach the effect of full range sound-absorbing.And medium-high frequency noise is with higher
Through characteristic, the 4th sound absorbing layer 4 and the further centering high frequency noise of the 5th sound absorbing layer 5 of setting absorbed, and improves complete
The effect of frequency sound-absorbing.And because the density of the 3rd sound absorbing layer 3 is larger, its hardness is also larger so that inside full range acoustical cotton
With larger intensity, and first sound absorbing layer 1, the second sound absorbing layer 2 are symmetrical with the 4th sound absorbing layer 4, the 5th sound absorbing layer 5 respectively
Set, make the both sides stress balance of the 3rd sound absorbing layer 3, effectively prevent deformation during acoustical cotton use.
Wherein, first sound absorbing layer 1 is polyester fiber acoustical cotton layer, and the aperture of its micropore is 15~20 μm；Described
Two sound absorbing layers 2 are polyester fiber acoustical cotton layer, and the aperture of its micropore is 5~10 μm；3rd sound absorbing layer 3 is inhaled for polyester fiber
Sound cotton layer, the aperture of its micropore is 1~2.5 μm；4th sound absorbing layer 4 is polyester fiber acoustical cotton layer, the aperture of its micropore
For 5~10 μm；Second sound absorbing layer 2 is polyester fiber acoustical cotton layer, and the aperture of its micropore is 15~20 μm.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and changed.Therefore, the utility model is not limited to above-mentioned embodiment, every this area skill
It is new that art personnel any conspicuously improved, replacement made on the basis of the utility model or modification belong to this practicality
The protection domain of type.Although in addition, having used some specific terms in this specification, these terms are intended merely to convenient say
It is bright, any limitation is not constituted to the utility model.
Claims (6)
1. a kind of full range acoustical cotton, it is characterised in that：Including the first sound absorbing layer from top to bottom stacked gradually, the second sound absorbing layer,
3rd sound absorbing layer, the 4th sound absorbing layer and the 5th sound absorbing layer, first sound absorbing layer, the second sound absorbing layer and the 3rd sound absorbing layer
Density increases successively, and the 3rd sound absorbing layer, the 4th sound absorbing layer, the density of the 5th sound absorbing layer are reduced successively, second sound-absorbing
The density of layer is 1.5~4 times of the first sound absorbing layer density, the 3rd sound absorbing layer density for the density of the second sound absorbing layer 2~
10 times, the 3rd sound absorbing layer density is 2~10 times of the 4th sound absorbing layer density, and the density of the 4th sound absorbing layer is inhaled for the 5th
1.5~4 times of sound-absorbing layer density.
2. a kind of full range acoustical cotton according to claim 1, it is characterised in that：First sound absorbing layer is inhaled for polyester fiber
Sound cotton layer, the aperture of its micropore is 15~20 μm.
3. a kind of full range acoustical cotton according to claim 1, it is characterised in that：Second sound absorbing layer is inhaled for polyester fiber
Sound cotton layer, the aperture of its micropore is 5~10 μm.
4. a kind of full range acoustical cotton according to claim 1, it is characterised in that：3rd sound absorbing layer is inhaled for polyester fiber
Sound cotton layer, the aperture of its micropore is 1~2.5 μm.
5. a kind of full range acoustical cotton according to claim 1, it is characterised in that：4th sound absorbing layer is inhaled for polyester fiber
Sound cotton layer, the aperture of its micropore is 5~10 μm.
6. a kind of full range acoustical cotton according to claim 1, it is characterised in that：Second sound absorbing layer is inhaled for polyester fiber
Sound cotton layer, the aperture of its micropore is 15~20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720263023.0U CN206598605U (en) | 2017-03-17 | 2017-03-17 | A kind of full range acoustical cotton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720263023.0U CN206598605U (en) | 2017-03-17 | 2017-03-17 | A kind of full range acoustical cotton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206598605U true CN206598605U (en) | 2017-10-31 |
Family
ID=60144238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720263023.0U Expired - Fee Related CN206598605U (en) | 2017-03-17 | 2017-03-17 | A kind of full range acoustical cotton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206598605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265841A (en) * | 2018-03-23 | 2018-07-10 | 江苏三弦建筑声学系统有限公司 | ATTS medium-high frequency acoustic boards |
-
2017
- 2017-03-17 CN CN201720263023.0U patent/CN206598605U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265841A (en) * | 2018-03-23 | 2018-07-10 | 江苏三弦建筑声学系统有限公司 | ATTS medium-high frequency acoustic boards |
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Legal Events
| 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: 20171031 |