CN2506799Y - Centrifugal blowing fan - Google Patents
Centrifugal blowing fan Download PDFInfo
- Publication number
- CN2506799Y CN2506799Y CN 01250770 CN01250770U CN2506799Y CN 2506799 Y CN2506799 Y CN 2506799Y CN 01250770 CN01250770 CN 01250770 CN 01250770 U CN01250770 U CN 01250770U CN 2506799 Y CN2506799 Y CN 2506799Y
- Authority
- CN
- China
- Prior art keywords
- centrifugal
- centrifuge shell
- machine shell
- centrifugal blower
- blower
- 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 centrifugal blower which comprises a centrifugal machine shell and centrifugal impellers in the machine shell and a motor axially and rotatablely connected with the centrifugal impellers, the centrifugal machine shell is a rounded volute shape which is beneficial to the smooth transition of the air, and the centrifugal machine shell is internally provided with a sound absorption layer which can effectively relieve and absorb the mechanical vibration and fluid fluctuation.
Description
Technical field
Centrifugal blower is that a kind of centrifugal impeller driving fluid by rotation is leaned on, the blower fan that centrifugal force makes fluid flow and discharge from the casing outlet.
Technical background
Existing centrifugal blower, there is the centrifugal impeller in centrifuge shell and the casing to reach and the coaxial motor that is in transmission connection of centrifugal impeller, centrifuge shell is made of the side of disc and both sides, and at right angles intersect disc and side, makes space, centrifuge shell inner chamber right angle be easy to generate eddy current.Particularly vibration and the airstream vibration that produces for centrifugal impeller can not play sound deadening.
Summary of the invention
The purpose of this utility model provides a kind of centrifugal blower that reduces noise.
Centrifugal blower of the present utility model has the centrifugal impeller in centrifuge shell and the casing to reach and the coaxial motor that is in transmission connection of centrifugal impeller.It is characterized in that: centrifuge shell is the scroll casing shape of fillet, helps the rounding off of fluid, should not produce gas shock, for mechanical vibration wave the rounding off mitigation is arranged also; With sound-absorbing material layer, can absorb the fluctuation of mechanical vibration and fluid effectively in the centrifuge shell.In addition, be spill, can also further reduce the noise of the mechanical vibration of motor with the corresponding centrifuge shell of motor shaft middle part.
Compared with the prior art centrifugal blower of the present utility model thus has fluctuation and the eddy current that more can alleviate mechanical vibration impact and air-flow effectively, absorbs the impact that hinge joint vibration wave and air-flow are stirred effectively, has formed the centrifugal blower that noise significantly reduces.
Description of drawings
Accompanying drawing has been represented the centrifugal blower sectional structure schematic representation that a kind of air draft of the present utility model is used.Example below in conjunction with accompanying drawing further specifies the utility model.
Embodiment
The utility model centrifugal blower that this air draft is used has the centrifuge shell 1 of glass fibre reinforced plastics and the centrifugal impeller in the casing 2 to reach and the coaxial motor that is in transmission connection 3 of centrifugal impeller.Centrifuge shell is the scroll casing shape 4 glass fibre reinforced plastics bodies of fillet, and the inner chamber of the slyness of formation helps the rounding off of fluid, should not produce gas shock and eddy current, for centrifugal impeller rotating machinery vibrating ripple the rounding off mitigation is arranged also; Glass fibre reinforced plastics centrifuge shell inwall also adheres to the asbestos layer 5 of one deck sound-absorbing.Asbestos layer can absorb mechanical vibration and fluid fluctuation effectively, has reduced the noise of blower fan effectively.Equally, be spill 6, can absorb and weaken the noise of the mechanical vibration of motor effectively with the corresponding centrifuge shell of motor shaft middle part.
Claims (2)
1, a kind of centrifugal blower has the centrifugal impeller in centrifuge shell and the casing to reach and the coaxial motor that is in transmission connection of centrifugal impeller, and it is characterized in that: centrifuge shell is the scroll casing shape of fillet, has sound-absorbing material layer in the centrifuge shell.
2, as the said centrifugal blower of claim 1, it is characterized in that: be spill with the corresponding centrifuge shell of motor shaft middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250770 CN2506799Y (en) | 2001-09-20 | 2001-09-20 | Centrifugal blowing fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250770 CN2506799Y (en) | 2001-09-20 | 2001-09-20 | Centrifugal blowing fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2506799Y true CN2506799Y (en) | 2002-08-21 |
Family
ID=33660852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250770 Expired - Fee Related CN2506799Y (en) | 2001-09-20 | 2001-09-20 | Centrifugal blowing fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2506799Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008407B (en) * | 2006-01-25 | 2010-06-02 | 株式会社电装 | Motor driven blower |
| CN104833032A (en) * | 2014-02-07 | 2015-08-12 | 百朗-纽通有限责任公司 | Ventilation system and method |
| CN108602457A (en) * | 2016-01-28 | 2018-09-28 | 标致雪铁龙汽车股份有限公司 | Sound arrester on ventilated seating wind turbine |
-
2001
- 2001-09-20 CN CN 01250770 patent/CN2506799Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008407B (en) * | 2006-01-25 | 2010-06-02 | 株式会社电装 | Motor driven blower |
| CN104833032A (en) * | 2014-02-07 | 2015-08-12 | 百朗-纽通有限责任公司 | Ventilation system and method |
| CN108602457A (en) * | 2016-01-28 | 2018-09-28 | 标致雪铁龙汽车股份有限公司 | Sound arrester on ventilated seating wind turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |