CN2720170Y - Novel silenced fan - Google Patents
Novel silenced fan Download PDFInfo
- Publication number
- CN2720170Y CN2720170Y CN 200420070221 CN200420070221U CN2720170Y CN 2720170 Y CN2720170 Y CN 2720170Y CN 200420070221 CN200420070221 CN 200420070221 CN 200420070221 U CN200420070221 U CN 200420070221U CN 2720170 Y CN2720170 Y CN 2720170Y
- Authority
- CN
- China
- Prior art keywords
- silencing
- body case
- noise elimination
- silencing body
- utility
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a novel silenced fan, comprising a silencing body case, a guide blade, a generator and a blade wheel. The utility model is characterized in that the integral form of the silencing body case is that the interior is round and the exterior is square; as the space of the corner part of the silencing body case is enlarged, the thickness of the silencing material can be increased and the silencing effect is improved; the inner layer of the silencing body case is the perforated board, the middle of the silencing body case is assembled with the acoustic material interlayer, and the exterior of the silencing body case is fixedly connected with an outer cover board; a damping pad is provided between the guide blade and the silencing body case. The utility model has the advantages that the damping pad is provided between the guide blade and the silencing body case, which forms the inner vibration damping; the inner side of the silencing body case is provided with the perforated board and assembled with the acoustic material interlayer with the outer cover board, which forms the outer silencing; simultaneously, when the whole machine is in field installation, the silencing body case is outwardly provided with the damping pad, and thus the silencing effect is good.
Description
Technical field
The utility model belongs to a kind of axial-flow blower, particularly a kind of novel noise elimination blower fan.
Background technique
The axial-flow blower of installing and using at present, noise is big during blower fan work, thereby has all adopted different noise countermeasures, and as cabinet type blower fan, it has adopted slow-speed of revolution belt transmission, and with the cabinet type noise that reduces, its shortcoming is that volume is big, and mechanical efficiency is low; Cladding formula blower fan is to add one deck muffler material at casing, reduces noise.Because said structure is not from dealing with problems at all, thereby the noise elimination effect is not very desirable.
The model utility content
The purpose of this utility model provides a kind of novel noise elimination blower fan, the noise elimination good damping result, and volume is little, and is easy for installation, energy saving.
The purpose of this utility model is achieved by the following technical solution: it comprises noise elimination casing, stator, motor and impeller, it is characterized in that: the global shape of noise elimination casing is interior round foreign side, its corner part thereby can increase the thickness of muffler material because the space is strengthened, and improves the noise elimination effect; Noise elimination casing internal layer is a perforated plate, middle assembling sound absorbing material interlayer, and outside affixed outer cover plate is provided with damping pad between stator and the noise elimination casing.
The utility model and prior art are compared has following advantage: between stator and the noise elimination casing damping pad is set, vibration damping in forming, there is perforated plate noise elimination casing inboard, and and outer cover plate between assembling sound absorbing material interlayer, form outer the noise elimination, when the on-the-spot installation of complete machine, add damping pad at the noise elimination casing, thereby it is effective to eliminate the noise simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Embodiment
See Fig. 1,2, concrete structure is as follows: the global shape of noise elimination casing 7 is interior round foreign side, and noise elimination casing internal layer is a perforated plate 2, the sound absorbing material interlayer 3 of middle assembling super glass wool, outside affixed outer cover plate 5 is provided with rubber asbestos plate damping pad 4 between stator 6 and the noise elimination casing.By prior art assembling motor 7 and impeller 1.
Claims (1)
1, a kind of novel noise elimination blower fan, it comprises noise elimination casing, stator, motor and impeller, it is characterized in that: the global shape of noise elimination casing is interior round foreign side, noise elimination casing internal layer is a perforated plate, middle assembling sound absorbing material interlayer, outside affixed outer cover plate is provided with damping pad between stator and the noise elimination casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070221 CN2720170Y (en) | 2004-08-10 | 2004-08-10 | Novel silenced fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070221 CN2720170Y (en) | 2004-08-10 | 2004-08-10 | Novel silenced fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2720170Y true CN2720170Y (en) | 2005-08-24 |
Family
ID=35009131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420070221 Expired - Fee Related CN2720170Y (en) | 2004-08-10 | 2004-08-10 | Novel silenced fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2720170Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042272A (en) * | 2010-12-13 | 2011-05-04 | 任文华 | Bladeless fan device |
| CN102691679A (en) * | 2011-03-22 | 2012-09-26 | 富士通株式会社 | Axial blower |
| CN102900656A (en) * | 2010-12-17 | 2013-01-30 | 任文华 | Bladeless fan device |
| CN105402145A (en) * | 2015-12-01 | 2016-03-16 | 江苏兆胜空调有限公司 | Novel axial flow fan for ship |
| CN108005962A (en) * | 2017-11-15 | 2018-05-08 | 浙江理工大学 | A kind of noise reduction rear guide vane for propeller fan |
-
2004
- 2004-08-10 CN CN 200420070221 patent/CN2720170Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042272A (en) * | 2010-12-13 | 2011-05-04 | 任文华 | Bladeless fan device |
| CN102900656A (en) * | 2010-12-17 | 2013-01-30 | 任文华 | Bladeless fan device |
| CN102691679A (en) * | 2011-03-22 | 2012-09-26 | 富士通株式会社 | Axial blower |
| CN105402145A (en) * | 2015-12-01 | 2016-03-16 | 江苏兆胜空调有限公司 | Novel axial flow fan for ship |
| CN108005962A (en) * | 2017-11-15 | 2018-05-08 | 浙江理工大学 | A kind of noise reduction rear guide vane for propeller fan |
| CN108005962B (en) * | 2017-11-15 | 2019-08-02 | 浙江理工大学 | A kind of noise reduction rear guide vane for propeller fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050824 Termination date: 20100810 |