CN208781558U - A kind of acoustic hood - Google Patents
A kind of acoustic hood Download PDFInfo
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- CN208781558U CN208781558U CN201821435074.8U CN201821435074U CN208781558U CN 208781558 U CN208781558 U CN 208781558U CN 201821435074 U CN201821435074 U CN 201821435074U CN 208781558 U CN208781558 U CN 208781558U
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- steel plate
- metal foil
- damping
- acoustic hood
- composite
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Abstract
The utility model discloses a kind of acoustic hood, including absorbent treatment, composite damping steel plate, the absorbent treatment is connected on the inside of composite damping steel plate；The composite damping steel plate includes successively from outside to inside metal foil one, damping layer and metal foil two, and the metal foil one, damping layer and metal foil two are combined with each other.Damping layer is with a thickness of 0.01-0.2mm.Composite damping steel plate is equipped with reinforcing rib.Acoustic hood is for compressor of air conditioner.The utility model acoustic hood includes that can express good sound insulation property, especially sound insulation room performance with the good constrained damping structure of damping capacity；It using composite damping steel plate structure, solves the problems, such as that damping layer high temperature is caducous, improves the service life of acoustic hood under the high temperature conditions；Composite damping steel plate have good processability, can flexible design acoustic hood shape, have better adaptability.
Description
Technical field
The utility model relates to noise reduction technology fields, are specifically related to acoustic hood.
Background technique
Acoustic hood has good noise reduction as one of common noise control product of compressor of air conditioner noise in engineering
Effect.Important component of the damping material as acoustic hood conventional scheme, is mainly used for the vibration and noise reducing of low frequency region.Resistance
The traditional mounting means of damping material includes that damping material is directly pasted onto cover surface and is passed through coating method using adhesive
Directly damping paint is coated on the cover surface of complex appearance.When being worked normally due to compressor of air conditioner, surface temperature
120 DEG C are close to, using in traditional acoustic hood of damping material, damping material is easy to fall off from cover surface after by high temperature, from
And the sound insulation property and service life of acoustic hood are influenced, or even will affect safety.
In the prior art, Gao Yuanji acoustic hood (CN201320768914.3) discloses a kind of acoustic enclosure structure, steel plate position
In the outermost of acoustic barrier, it is equipped with damping layer in the inside of steel plate, absorbent treatment, metal piercing are provided on the inside of damping layer
Plate is most inner side.Acoustic hood (CN90221574.4) includes shell and the absorbent treatment that is connected on outer casing inner wall.In addition, in shell
Wall on be coated with damping layer, the profile of cover and the profile of sonic source device match.Compressor noise-reduction structure
(CN201420515518.4) include: for the installation board of compressor of compressor is installed, be located at outside compressor and with compression
The first order denoising device that machine mounting plate is fixedly connected, and it is located at the second level noise reduction dress outside first order denoising device
It sets.First denoising device includes the high density Metal plate for intermediate frequency noise reduction and the mineral wool for high frequency noise reduction, the second drop
Device of making an uproar includes the high density Metal plate for intermediate frequency noise reduction and the nitrile rubber and felt for low frequency and high frequency noise reduction
Composition.It is above-mentioned in order to control low-frequency noise, to there is the case where using damping material in the prior art, but it uses resistance
The case where mode of damping material is only applicable to the lower situation of temperature, is not suitable for compressor of air conditioner elevated operating temperature.Meanwhile
Above-mentioned damping material thickness is thicker in the prior art, and weight is heavy, at high cost.
Utility model content
The purpose of this utility model is to provide a kind of acoustic hood, solves the problems, such as that damping layer high temperature is caducous.
The technical solution of the utility model is: a kind of acoustic hood, including absorbent treatment, composite damping steel plate, the absorbent treatment
It is pasted on the inside of composite damping steel plate；The composite damping steel plate successively includes metal foil one, damping layer and gold from outside to inside
Belong to steel plate two, the metal foil one, damping layer and metal foil two are combined with each other.
Damping layer is with a thickness of 0.01-0.2mm.
Absorbent treatment is fiber-like sound-absorbing material or foaming kind sound-absorbing material.
Acoustic hood is the acoustic hood for compressor of air conditioner, and the shape of acoustic hood is matched with compressor shape.
Composite damping steel plate is equipped with reinforcing rib.
A kind of acoustic hood, including absorbent treatment, composite damping steel plate, the absorbent treatment are pasted on the inside of composite damping steel plate；
The composite damping steel plate successively includes metal foil one, damping layer one, metal foil two, damping layer two, metal from outside to inside
Steel plate three, the metal foil one, damping layer one, metal foil two, damping layer two, metal foil triplex are together.
A kind of acoustic hood, including absorbent treatment, composite damping steel plate, composite damping steel plate successively include metallic steel from outside to inside
Plate one, damping layer and metal foil two, the metal foil one, damping layer and metal foil two are combined with each other；Composite damping
Steel plate has two pieces: composite damping steel plate one and composite damping steel plate two；Absorbent treatment has two: absorbent treatment one and absorbent treatment two；Every
Acoustic shell successively includes composite damping steel plate one, absorbent treatment one, composite damping steel plate two, absorbent treatment two from outside to inside；Absorbent treatment one
It is pasted between composite damping steel plate one and composite damping steel plate two, absorbent treatment two is pasted onto two inside of composite damping steel plate.
The utility model has the beneficial effects that acoustic hood include with the good constrained damping structure of damping capacity, can table
Reveal good sound insulation property, especially middle sound insulation room performance；Using composite damping steel plate structure, it is easy to solve damping layer high temperature
The problem of falling off improves the service life of acoustic hood under the high temperature conditions；Composite damping steel plate has good processability, can
The shape of flexible design acoustic hood has better adaptability.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
In figure: compressor 1, absorbent treatment 2, metal foil 23, damping layer 4, metal foil 1.
Specific embodiment
Referring to FIG. 1, a kind of acoustic hood, for the noise control of compressor of air conditioner 1, including composite damping steel plate and stickup
Absorbent treatment 2 on the inside of composite damping steel plate.Composite damping steel plate mainly by one 5(of metal foil be outer steel facing), damping layer 4
With the i.e. interior steel facing of two 3(of metal foil) closely it is combined, damping layer is with a thickness of 0.01-0.2mm, two thickness root of metal foil
It is designed according to the requirement of oise insulation factor.Absorbent treatment is the fiber-likes such as foaming kinds sound-absorbing material or glass fibre such as polyurethane sound absorption material
Material, specific type and specification can be determined according to noise source spectral characteristic and construction space.
The utility model acoustic hood is a kind of compressor of air conditioner acoustic hood, in compressor of air conditioner acoustic enclosure structure, damping layer
It is fitted closely by two sides steel plate, forms the constrained damping structure with good damping capacity, while the structure can guarantee resistance
Buddhist nun's layer will not be fallen off in applied at elevated temperature environment, so that damping layer all has good vibration damping within the scope of very wide temperature
Performance, therefore the acoustic hood not only has good sound insulation property, there are also good service lifes in high temperature noise reduction environment.
In the compressor of air conditioner acoustic enclosure structure of the utility model, composite damping steel plate is due to damping layer very thin thickness, tool
Have a good processing performance, such as it is solderable, can punching press, therefore the construction profile of acoustic hood can be easily according to noise reduction object
Profile flexible design is suitable for different use space environment.
The utility model can use following alternative:
1) reinforcement composite damping steel plate substitutes common composite damping steel plate, and composite damping steel plate is equipped with reinforcing rib.It is logical
Cross and local reinforcement or the processing of equivalent reinforcement carried out to acoustic hood composite damping steel plate, improve the local stiffness of acoustic hood, reduce to
The noise energy of external radiation promotes the noise reduction effect of acoustic hood.
2) MULTILAYER COMPOSITE damping steel plate (metal foil+damping layer+metal foil+damping layer+metal foil) replacing single-layer
It damps clad steel plate (metal foil+damping layer+metal foil).Increase the surface density of sound insulating layer by the similar fashion, improves
The noise reduction effect of acoustic hood；Under this situation, three pieces of metal foils are respectively metal foil one, metal foil two, metal foil
Three, two damping layers are respectively damping layer one and damping layer two.Composite damping steel plate from outside to inside successively include metal foil one,
Damping layer one, metal foil two, damping layer two, metal foil three, the metal foil one, damping layer one, metal foil two, resistance
Buddhist nun's layer two, metal foil three are closely combined with each other.
3) " composite damping steel plate+absorbent treatment+composite damping steel plate+absorbent treatment " substitution " composite damping steel plate+absorbent treatment "
Acoustic hood scheme.Single acoustic hood scheme is substituted using double acoustic hood schemes, while cooperating the redesign of each structure sheaf, is realized more preferable
Noise reduction effect.In this case, composite damping steel plate has two: composite damping steel plate one and composite damping steel plate two；Sound absorption
Layer has two: absorbent treatment one and absorbent treatment two；Acoustic hood from outside to successively include composite damping steel plate one, it is absorbent treatment one, compound
Damping steel plate two, absorbent treatment two；Absorbent treatment one is pasted between composite damping steel plate one and composite damping steel plate two, absorbent treatment two
It is pasted onto two inside of composite damping steel plate.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on are included in the protection scope of the present invention.
Claims (7)
1. a kind of acoustic hood, including absorbent treatment, characterized in that further include composite damping steel plate, the absorbent treatment is pasted onto compound
On the inside of damping steel plate；The composite damping steel plate successively includes metal foil one, damping layer and metal foil two, institute from outside to inside
Metal foil one, damping layer and metal foil two is stated to be combined with each other.
2. acoustic hood according to claim 1, characterized in that damping layer is with a thickness of 0.01-0.2mm.
3. acoustic hood according to claim 1, characterized in that absorbent treatment is fiber-like sound-absorbing material or foaming kind sound absorption material
Material.
4. acoustic hood according to claim 1, characterized in that acoustic hood is the acoustic hood for compressor of air conditioner, sound insulation
The shape of cover is matched with compressor shape.
5. acoustic hood according to claim 1, characterized in that composite damping steel plate is equipped with reinforcing rib.
6. a kind of acoustic hood, including absorbent treatment；It is characterized in that further including composite damping steel plate, the absorbent treatment is pasted onto compound
On the inside of damping steel plate；The composite damping steel plate from outside to inside successively include metal foil one, damping layer one, metal foil two,
Damping layer two, metal foil three, the metal foil one, damping layer one, metal foil two, damping layer two, metal foil three are multiple
It is combined.
7. a kind of acoustic hood, including absorbent treatment；It is characterized in that further including composite damping steel plate, composite damping steel plate is from outside to inside
It include successively metal foil one, damping layer and metal foil two, the metal foil one, damping layer and metal foil two are compounded in
Together；Composite damping steel plate has two pieces: composite damping steel plate one and composite damping steel plate two；Absorbent treatment has two: absorbent treatment one
With absorbent treatment two；Acoustic hood successively includes composite damping steel plate one, absorbent treatment one, composite damping steel plate two, sound absorption from outside to inside
Layer two；Absorbent treatment one is pasted between composite damping steel plate one and composite damping steel plate two, and absorbent treatment two is pasted onto composite damping
Two inside of steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821435074.8U CN208781558U (en) | 2018-09-04 | 2018-09-04 | A kind of acoustic hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821435074.8U CN208781558U (en) | 2018-09-04 | 2018-09-04 | A kind of acoustic hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208781558U true CN208781558U (en) | 2019-04-23 |
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ID=66159553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821435074.8U Active CN208781558U (en) | 2018-09-04 | 2018-09-04 | A kind of acoustic hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208781558U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049774A (en) * | 2020-08-20 | 2020-12-08 | 株洲时代新材料科技股份有限公司 | Compressor noise reduction device and method |
| CN112549685A (en) * | 2020-12-26 | 2021-03-26 | 江苏汉龙航空科技发展有限公司 | Submarine silencing damping material |
-
2018
- 2018-09-04 CN CN201821435074.8U patent/CN208781558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049774A (en) * | 2020-08-20 | 2020-12-08 | 株洲时代新材料科技股份有限公司 | Compressor noise reduction device and method |
| CN112549685A (en) * | 2020-12-26 | 2021-03-26 | 江苏汉龙航空科技发展有限公司 | Submarine silencing damping material |
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