CN211449211U - Amortization fan - Google Patents
Amortization fan Download PDFInfo
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- CN211449211U CN211449211U CN202020109048.7U CN202020109048U CN211449211U CN 211449211 U CN211449211 U CN 211449211U CN 202020109048 U CN202020109048 U CN 202020109048U CN 211449211 U CN211449211 U CN 211449211U
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- shell
- silencing
- fan
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- inner cavity
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Abstract
The utility model belongs to the technical field of the fan technique and specifically relates to an amortization fan. The silencing fan comprises a silencing bin, wherein the silencing bin comprises a shell, a pore plate, silencing cotton and a silencing cone, the shell is communicated from left to right, the pore plate is fixed in an inner cavity of the shell, the silencing cotton is filled between the pore plate and the shell, the left end of the silencing cone is fixed at the left end of the inner cavity of the shell through a support rod, and the right end of the silencing cone is fixed at the right end of the inner cavity of the shell through the support rod; the left end of the shell is provided with an air inlet cylinder, the right end of the shell is provided with an air outlet cylinder, the middle part of the air inlet cylinder is fixed with a motor through a support, and a rotating shaft of the motor is provided with an impeller. The utility model discloses a amortization fan, the wind body gets into the noise elimination storehouse from an air inlet section of thick bamboo inside to along the orifice plate and the passageway between the noise elimination awl flow in the noise elimination storehouse, flow the in-process and carry out the one-level amortization through the orifice plate, carry out the second grade amortization through the noise elimination awl, carry out tertiary amortization through the amortization cotton, the effect reinforcing of amortization makes the discharged wind reach the decibel that can accept in making people's sense of hearing.
Description
Technical Field
The utility model belongs to the technical field of the fan technique and specifically relates to an amortization fan.
Background
The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Fans are widely used for cooling and ventilation in the fields of air conditioning equipment, household electrical appliances, and the like. The fan generates noise during operation, which is related to the rotation of the impeller, and the noise of the fan is particularly prominent under the conditions of high-speed and low-load operation of the impeller. The existing noise reduction fan is mostly provided with an attraction material in the fan, and the noise reduction effect is achieved through the sound absorption effect of the sound absorption material. When the fan is used, at least the following defects exist: the sound absorbing material is single, the setting mode is simple and not scientific and reasonable enough, although the noise is weakened to a certain extent, the noise which causes auditory discomfort can be still felt after the noise is eliminated, and the noise elimination effect is not obvious enough.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a noise elimination fan overcomes among the aforementioned prior art noise elimination fan sound absorbing material single, sound absorbing structure not enough not the not good not enough of noise cancelling effect that scientific and reasonable leads to inadequately.
The utility model provides a technical scheme that its technical problem adopted is:
a silencing fan comprises a silencing bin, wherein the silencing bin comprises a shell, a pore plate, silencing cotton and a silencing cone, the shell is communicated from left to right, the pore plate is fixed in an inner cavity of the shell, the silencing cotton is filled between the pore plate and the shell, the left end of the silencing cone is fixed at the left end of the inner cavity of the shell through a support rod, and the right end of the silencing cone is fixed at the right end of the inner cavity of the shell through the support rod; the left end of the shell is provided with an air inlet cylinder, the right end of the shell is provided with an air outlet cylinder, the middle part of the air inlet cylinder is fixed with a motor through a support, and a rotating shaft of the motor is provided with an impeller.
Furthermore, the shape of the pore plate is matched with that of the inner cavity of the shell, and the pore plate is riveted to the inner cavity of the shell.
Furthermore, the silencing cone is made of a sound-absorbing plate and is arranged on the central line of the inner cavity of the shell.
Furthermore, the thin end of the silencing cone is positioned at the left end of the inner cavity of the shell, and the thick end of the silencing cone is positioned at the right end of the inner cavity of the shell.
Furthermore, the left end and the right end of the silencing cone are both provided with a flow guide cap, and the flow guide caps are hemispherical.
Furthermore, the bottom surface of the flow guide cap is riveted and fixed with the silencing cone.
Furthermore, the support rod at the left end of the silencing cone, the support rod at the right end of the silencing cone and the support for fixing the motor are respectively arranged in a circular array.
The utility model has the advantages that: compared with the prior art, the utility model discloses an amortization fan has following advantage: the motor drives the impeller to rotate, the wind body enters the interior of the noise elimination bin from the air inlet cylinder and flows along a channel between the pore plate and the noise elimination cone in the noise elimination bin, primary noise elimination is carried out through the pore plate in the flowing process, secondary noise elimination is carried out through the noise elimination cone, and tertiary noise elimination is carried out through the noise elimination cotton.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
wherein, 1 casing, 2 orifice plates, 3 amortization cotton, 4 amortization cones, 5 bracing pieces, 6 air inlet stacks, 7 play dryer, 8 supports, 9 motors, 10 impellers, 11 water conservancy diversion caps.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
In the embodiment shown in fig. 1, a silencing fan comprises a silencing bin, wherein the silencing bin comprises a shell 1, a pore plate 2, silencing cotton 3 and a silencing cone 4, the shell 1 is through from left to right, the pore plate 2 is fixed in an inner cavity of the shell 1, the silencing cotton 3 is filled between the pore plate 2 and the shell 1, the left end of the silencing cone 4 is fixed at the left end of the inner cavity of the shell 1 through a support rod 5, and the right end of the silencing cone 4 is fixed at the right end of the inner cavity of the shell 1 through the support rod 5; the left end of the shell 1 is provided with an air inlet cylinder 6, the right end of the shell 1 is provided with an air outlet cylinder 7, the middle part of the air inlet cylinder 6 is fixed with a motor 9 through a support 8, and a rotating shaft of the motor 9 is provided with an impeller 10.
In this embodiment, the shape of the orifice plate 2 is matched with the shape of the inner cavity of the shell 1, and the orifice plate 2 is riveted to the inner cavity of the shell 1.
In this embodiment, the sound attenuation cone 4 is made of a sound absorption plate, and the sound attenuation cone 4 is disposed on a center line of an inner cavity of the housing 1.
In this embodiment, the thin end of the silencing cone 4 is located at the left end of the inner cavity of the housing 1, and the thick end of the silencing cone 4 is located at the right end of the inner cavity of the housing 1.
In this embodiment, the left end and the right end of the silencing cone 4 are both provided with a diversion cap 11, and the diversion cap 11 is hemispherical.
In this embodiment, the bottom surface of the deflector cap 11 is riveted and fixed to the silencing cone 4.
In this embodiment, the support rod 5 at the left end of the silencing cone 4, the support rod 5 at the right end of the silencing cone 4 and the support 8 for fixing the motor 9 are respectively arranged in a circular array.
The working principle is as follows: the utility model discloses a amortization fan, motor 9 drive impeller 10 is rotatory during the use, the wind body gets into the noise elimination storehouse from an air inlet section of thick bamboo 6 inside, and along orifice plate 2 and the passageway between the noise elimination awl 4 flow in the noise elimination storehouse, flow in-process carries out the one-level amortization through orifice plate 2, carry out the second grade amortization through noise elimination awl 4, carry out tertiary amortization through amortization cotton 3, because the wind body is the annular passage flow at the noise elimination intracavity, the wind body is cut thinly, combine tertiary amortization, the effect of amortization strengthens, especially noise elimination awl 4 is held to go out the fan 7 ends by an air inlet section of thick bamboo and becomes thick gradually, the wind body passageway is corresponding to narrow down, thereby greatly improved the noise cancelling effect of the wind body, make the wind of going out fan 7 exhaust reaches the decibel that can accept on.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a amortization fan which characterized in that: the silencing device comprises a silencing bin, wherein the silencing bin comprises a shell, a pore plate, silencing cotton and a silencing cone, the shell is communicated from left to right, the pore plate is fixed in an inner cavity of the shell, the silencing cotton is filled between the pore plate and the shell, the left end of the silencing cone is fixed at the left end of the inner cavity of the shell through a support rod, and the right end of the silencing cone is fixed at the right end of the inner cavity of the shell through the support rod; the left end of the shell is provided with an air inlet cylinder, the right end of the shell is provided with an air outlet cylinder, the middle part of the air inlet cylinder is fixed with a motor through a support, and a rotating shaft of the motor is provided with an impeller.
2. The muffling fan of claim 1, wherein: the shape of the pore plate is matched with that of the inner cavity of the shell, and the pore plate is riveted to the inner cavity of the shell.
3. The muffling fan of claim 1, wherein: the silencing cone is made of a sound-absorbing plate and is arranged on the central line of the inner cavity of the shell.
4. The muffling fan of claim 3, wherein: the thin end of the silencing cone is positioned at the left end of the inner cavity of the shell, and the thick end of the silencing cone is positioned at the right end of the inner cavity of the shell.
5. The muffling fan of claim 1, wherein: the left end and the right end of the silencing cone are both provided with a guide cap, and the guide caps are hemispherical.
6. The muffling fan of claim 5, wherein: the bottom surface of the flow guide cap is riveted and fixed with the silencing cone.
7. The muffling fan of claim 1, wherein: the support rod at the left end of the silencing cone, the support rod at the right end of the silencing cone and the support for fixing the motor are respectively arranged in a circular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020109048.7U CN211449211U (en) | 2020-01-16 | 2020-01-16 | Amortization fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020109048.7U CN211449211U (en) | 2020-01-16 | 2020-01-16 | Amortization fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211449211U true CN211449211U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020109048.7U Active CN211449211U (en) | 2020-01-16 | 2020-01-16 | Amortization fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN211449211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001831A1 (en) * | 2020-06-29 | 2022-01-06 | 中兴通讯股份有限公司 | Silencing unit, and honeycomb muffler |
| CN114550680A (en) * | 2022-04-27 | 2022-05-27 | 国网山东省电力公司潍坊市寒亭区供电公司 | Ventilation and noise elimination device for transformer substation |
-
2020
- 2020-01-16 CN CN202020109048.7U patent/CN211449211U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001831A1 (en) * | 2020-06-29 | 2022-01-06 | 中兴通讯股份有限公司 | Silencing unit, and honeycomb muffler |
| CN114550680A (en) * | 2022-04-27 | 2022-05-27 | 国网山东省电力公司潍坊市寒亭区供电公司 | Ventilation and noise elimination device for transformer substation |
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