CN201615581U - Silencer used for ventilating system - Google Patents
Silencer used for ventilating system Download PDFInfo
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- CN201615581U CN201615581U CN2010200499248U CN201020049924U CN201615581U CN 201615581 U CN201615581 U CN 201615581U CN 2010200499248 U CN2010200499248 U CN 2010200499248U CN 201020049924 U CN201020049924 U CN 201020049924U CN 201615581 U CN201615581 U CN 201615581U
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- silencing means
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Abstract
The utility model relates to a silencer, in particular to a silencer used for a ventilating system, which can reduce the noise intensity of the ventilating system and belongs to the field of ventilating equipment. The silencer mainly comprises a porous inner plate layer, a fiber layer, an acoustic absorbing material layer and an acoustic absorbing cavity layer, wherein holes are distributed on the porous inner plate layer and penetrate the porous inner plate layer; a gas passageway is formed and encircled by the inner side of the porous inner plate layer; the outer side of the porous inner plate layer is encircled by the fiber layer; one side of the fiber layer, which is far away from the porous inner plate layer, is encircled by the acoustic absorbing material layer; and one side of the acoustic absorbing material layer, which is far away from the fiber layer, is encircled by the acoustic absorbing cavity layer, wherein the acoustic absorbing cavity layer comprises a cavity housing and an acoustic absorbing cavity which is formed by the inside space encircled by the cavity housing.
Description
Technical field
The utility model relates to a kind of silencing means, and especially a kind of silencing means that is used for ventilating system can reduce the noise intensity of ventilating system by this silencing means, belongs to the ventilation equipment field.
Background technology
In the building design of modern society, especially, generally all the subsystem of ventilating system as building can be used for carrying out between the building inside and the external world air exchange to guarantee the pure and fresh of building inner air as the building of public arena.And generally all can be equipped with blower fan and airduct in the middle of the ventilating system, and blower fan is used for pumping into outside air in the building or the air in the building is pumped, and airduct is used for steering current.All ventilating systems all can produce noise in running.In the middle of the existing Design of Ventilation System, the shape of optimizing the parts such as impeller, airduct of blower fan by aerodynamic principle reduces noise, perhaps come noise reduction, perhaps by the purpose that silencing means reaches noise reduction is set on ventilating system by the structure of optimizing blower fan, airduct inside.Silencing means can effectively reduce the complexity of Design of Ventilation System and manufacturing as a standalone feature module of ventilating system.
Summary of the invention
The purpose of this utility model is to provide a kind of silencing means that is used for blower fan that uses multi-layer compound structure, to reduce the noise of ventilating system better.
In order to reach above-mentioned purpose of the present utility model, the utility model is achieved through the following technical solutions: a kind of silencing means that is used for ventilating system, mainly form by flaggy, fibrage, sound-absorbing material layer and sound-absorbing cavity layer in holes, flaggy is distributed with the hole and penetrates interior flaggy with holes in holes, the inboard of flaggy surrounds and forms a gas passage in holes, fibrage is enclosed in the interior flaggy with holes outside, sound-absorbing material layer is enclosed in the side of fibrage away from flaggy in holes, and sound-absorbing cavity layer is enclosed in sound-absorbing material layer away from a fibrolaminar side; Wherein: sound-absorbing cavity layer is made up of cavity shell and sound absorption cavity, and the cavity shell surrounds the inner space that forms and constitutes sound absorption cavity.
Above-mentioned silencing means, wherein sound-absorbing material layer is made of a kind of material at least.
Above-mentioned silencing means, wherein sound-absorbing material layer is made of layer of material on layer of structure at least.
Above-mentioned silencing means, wherein sound-absorbing cavity layer is made of one deck cavity on layer of structure at least.
Above-mentioned silencing means, wherein the sound-absorbing cavity layer while is as the shell of silencing means.
Above-mentioned silencing means, wherein at the shell of sound-absorbing cavity layer lateral surface increase silencing means, this shell plays protection and fixation.
Above-mentioned silencing means, wherein the silencing means conduct independently is installed on the ventilating system unit.
Above-mentioned silencing means, wherein silencing means is installed in the blower fan of ventilating system as parts.
Above-mentioned silencing means, wherein silencing means is installed in the airduct of ventilating system as parts.
Above-mentioned silencing means, wherein fibrage uses metallic fiber and/or uses non-metallic fibers.
In the technical solution of the utility model, the inboard of flaggy surrounds the path that the gas passage that forms also is the transmission noise in holes, noise along with gas flow to around radiation, wherein the part noise sees through interior flaggy with holes and is successively absorbed by other structure in the flaggy outside in holes, thereby realizes noise reduction; Such multilayered structure because the employing sound-absorbing material combines with sound absorption cavity can realize the absorption to the noise of multiple frequency domain; Realize that the structure that the utility model adopts does not need to develop new production technology, be issued to good noise reduction, therefore the utlity model has substantive distinguishing features and marked improvement in the prerequisite that does not increase structural complexity.
Description of drawings
Fig. 1 is the overall appearance perspective view of an embodiment of the present utility model;
Fig. 2 is the left view of embodiment shown in Figure 1;
Fig. 3 is that the A-A line in Fig. 2 cuts open the cutaway view of getting;
Fig. 4 is the partial enlarged drawing in the zone that JJ indicated among Fig. 3;
Fig. 5 is an outward appearance perspective view of having used a kind of blower fan of embodiment shown in Figure 1, and silencing means is installed in the blower fan, and silencing means is as functional part of blower fan rather than as unit independently;
Fig. 6 is the perspective analysis diagram of blower fan shown in Figure 4, and this perspective analysis diagram is expressed embodiment shown in Figure 1 mounting means in this kind blower fan;
Wherein, in the accompanying drawing:
1-Blower Housing one, 2-Blower Housing two, 3-blower motor, 4-draught fan impeller, 5-motor frame, 6-silencing means one, 7-silencing means two, flaggy in 8-is with holes, 9-fibrage, 10-sound-absorbing material layer one, 11-sound-absorbing material layer two, 12-cavity shell, 13-sound absorption cavity.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is described.
Shown in Fig. 1-4, present embodiment is made up of silencing means 1 and silencing means 27 two parts, silencing means 1 is all identical with composition with silencing means 27 structures, and silencing means 1 and silencing means 27 all mainly are made up of flaggy 8, fibrage 9, sound-absorbing material layer and sound-absorbing cavity layer in holes; Sound-absorbing material layer on layer of structure by sound-absorbing material layer 1 and 2 11 two-layer compositions of sound-absorbing material layer, sound-absorbing material layer 1 is wrapped in the lateral surface of sound-absorbing material layer 2 10, sound-absorbing material layer 1 and sound-absorbing material layer 2 11 use the acoustical cotton of different fibre coarsenesses respectively, to absorb the noise of different frequency domains respectively; Sound-absorbing cavity layer is made up of cavity shell 12 and sound absorption cavity 13, and cavity shell 12 surrounds the inner space that forms and constitutes sound absorption cavity 13.Interior flaggy 8 with holes distributes porose and penetrates interior flaggy 8 with holes, and the hole on the interior flaggy 8 with holes is uniformly distributed on the interior flaggy 8 with holes, and the inboard of interior flaggy 8 with holes surrounds similar columned gas passage of formation; Fibrage 9 is enclosed in interior flaggy 8 outsides with holes, and fibrage 9 can use metallic fiber also can use non-metallic fibers, and fibrage 9 uses nonwoven cloth material in the present embodiment, and fibrage 9 can stop that the fiber in the sound-absorbing material layer enters the gas passage; Sound-absorbing material layer is enclosed in the side of fibrage 9 away from flaggy 8 in holes, and sound-absorbing cavity layer is enclosed in the side of the sound-absorbing material layer 2 11 of sound-absorbing material layer away from fibrage 9.
Shown in Fig. 6-7, silencing means is installed in the blower fan, and silencing means is as functional part of blower fan rather than as unit independently.Silencing means is wrapped in blower motor 3 and draught fan impeller 4 in its inner space that forms, and promptly is wrapped in the gas passage.The housing of blower fan is made up of Blower Housing 1 and Blower Housing 22 two parts, and Blower Housing 1 and Blower Housing 22 are wrapped in the silencing means lateral surface.Blower motor 3 is fixed on by motor frame 5 on the housing of blower fan, and motor frame 5 passes between silencing means 1 and the silencing means 27.
Claims (10)
1. silencing means that is used for ventilating system, mainly by flaggy (8) in holes, fibrage (9), sound-absorbing material layer (10,11) and sound-absorbing cavity layer (12,13) form, interior flaggy (8) with holes distributes porose and penetrates interior flaggy (8) with holes, the inboard of flaggy (8) surrounds and forms a gas passage in holes, fibrage (9) is enclosed in interior flaggy (8) the with holes outside, sound-absorbing material layer (10,11) be enclosed in the side of fibrage (9) away from flaggy (8) in holes, sound-absorbing cavity layer (12,13) is enclosed in the side of sound-absorbing material layer (10,11) away from fibrage (9); Wherein: sound-absorbing cavity layer is made up of cavity shell (12) and sound absorption cavity (13), and cavity shell (12) surrounds the inner space that forms and constitutes sound absorption cavity (13).
2. silencing means according to claim 1, wherein: sound-absorbing material layer (10,11) is made of a kind of material at least.
3. silencing means according to claim 1, wherein: sound-absorbing material layer (10,11) is made of layer of material on layer of structure at least.
4. silencing means according to claim 1, wherein: sound-absorbing cavity layer (12,13) is made of one deck cavity on layer of structure at least.
5. silencing means according to claim 1, wherein: sound-absorbing cavity layer (12, the 13) while is as the shell of silencing means.
6. silencing means according to claim 1, wherein: increase the shell of silencing means at the lateral surface of sound-absorbing cavity layer (12,13), this shell plays protection and fixation.
7. silencing means according to claim 1, wherein: the silencing means conduct independently is installed on the ventilating system unit.
8. silencing means according to claim 1, wherein: silencing means is installed in the blower fan of ventilating system as parts.
9. silencing means according to claim 1, wherein: silencing means is installed in the airduct of ventilating system as parts.
10. silencing means according to claim 1, wherein: fibrage (9) can use metallic fiber also can use non-metallic fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200499248U CN201615581U (en) | 2010-01-15 | 2010-01-15 | Silencer used for ventilating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200499248U CN201615581U (en) | 2010-01-15 | 2010-01-15 | Silencer used for ventilating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615581U true CN201615581U (en) | 2010-10-27 |
Family
ID=43001949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200499248U Expired - Lifetime CN201615581U (en) | 2010-01-15 | 2010-01-15 | Silencer used for ventilating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769588A (en) * | 2010-01-15 | 2010-07-07 | 汪祥 | Sound adsorbing device for ventilating system |
-
2010
- 2010-01-15 CN CN2010200499248U patent/CN201615581U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769588A (en) * | 2010-01-15 | 2010-07-07 | 汪祥 | Sound adsorbing device for ventilating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101027 |
|
| CX01 | Expiry of patent term |