CN2228996Y - Vane for low-noise centrifugal fan - Google Patents
Vane for low-noise centrifugal fan Download PDFInfo
- Publication number
- CN2228996Y CN2228996Y CN 95219986 CN95219986U CN2228996Y CN 2228996 Y CN2228996 Y CN 2228996Y CN 95219986 CN95219986 CN 95219986 CN 95219986 U CN95219986 U CN 95219986U CN 2228996 Y CN2228996 Y CN 2228996Y
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- China
- Prior art keywords
- impeller
- noise
- centrifugal fan
- low
- noise reduction
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- 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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Abstract
The utility model relates to a vane for a low-noise centrifugal fan, which is integrally form with an impeller and vanes by injection molding. A silencing layer is coated at the point of the inner end surface of each of the vanes; therefore, the vane for low-noise centrifugal fan can be used for reducing the noise of the centrifugal fan of a window type air conditioner. The silencing layer is made of rubber, or polyfoam, or chemical fibre flock or soft PVC. The mode of coating is felectrostatic lock coating, or spray coating or adhesive connection. The utility model has the advantages of simple structure, simple technologies, obvious noise reduction, low cost and high applicability.
Description
The utility model relates to the centrifugal cutter technical field, particularly a kind of low noise centrifugal cutter wind wheel that is used for air conditioner.
The centrifugal cutter that existing window air conditioner uses, the wind wheel that is made of impeller and blade is to adopt the ABS engineering plastics Integratively formed with injection moulding process.In order to guarantee that impeller has enough rigidity when the high speed rotating, the material of impeller adopts highstrenghtpiston or even metallic material, so impeller interior edge face hardness height.When high speed rotating, air-flow enters impeller along the impeller axial direction, and percussion impeller interior edge face produces very big aerodynamic force noise.
The purpose of this utility model is to provide a kind of structure and technology is simple, the low noise centrifugal cutter wind wheel of excellent noise reduction effect.
The utility model is achieved by the following technical solution: a kind of low noise centrifugal cutter wind wheel, form by impeller and blade, be evenly equipped with blade on circumference of impeller, impeller, blade employing engineering plastics or metallic material are Integratively formed, and the place is coated with the noise reduction layer at the impeller interior edge face.The material of described noise reduction layer is to adopt rubber or foamed plastics or chemical fibre suede or flexible PVC.The mode that covers the noise reduction layer on impeller interior edge face matrix is to adopt static flocking or spraying or bonding.
When impeller rotated, to suction, the 90 ° of angles of transferring then were along radially discharging impeller through collector shaft for air.When air-flow percussion impeller interior edge face was transferred, because its interior edge face is coated with the noise reduction layer, had weakened greatly to the effect of impact of air particle impeller the inner.Meanwhile, air collision impeller interior edge face the and therefore eddy current that forms also weakens is so can reduce the aerodynamic force noise effectively.
Advantage of the present utility model is structure and technology is simple, noise reduction is obvious, with low cost, adaptability is strong.
Fig. 1 is the utility model structural representation;
Fig. 2 is A-A sectional view of Fig. 1.
By following embodiment the utility model is further elaborated.
Embodiment 1:
With reference to Fig. 1, shown in Figure 2, the centrifugal cutter wind wheel 1 that window air conditioner is used is made up of impeller 2 and blade 3, is evenly equipped with some on impeller 2 circumference.Noise reduction layer 5 material adopt flexible PVC, by spraying method it are sprayed on the interior edge face place of impeller matrix 4.
Embodiment 2:
With reference to Fig. 1, shown in Figure 2, the body material of impeller 2 is engineering plastics or metalwork, covers a noise reduction layer 5 by adhering method in its end face inboard.The material of noise reduction layer adopts rubber sheet or plastic foam sheet material.
Embodiment 3:
With reference to Fig. 1, shown in Figure 2, impeller 2 body materials are engineering plastics or metallic material, adopt electrostatic flocking method that chemical fibre suede is planted thereon at the inboard matrix 4 of impeller 2 end faces, thereby cover last layer noise reduction layer 5.
Claims (3)
1, a kind of low noise centrifugal cutter wind wheel is made up of impeller and blade, is evenly equipped with blade on circumference of impeller, and impeller, blade employing engineering plastics or metallic material are Integratively formed, it is characterized in that being coated with the noise reduction layer at impeller interior edge face place.
2, wind wheel according to claim 1, the material that it is characterized in that described noise reduction layer are rubber or foamed plastics or chemical fibre suede or flexible PVC.
3, wind wheel according to claim 1, the coverage mode that it is characterized in that noise reduction layer and impeller matrix are static flocking or spraying or bonding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 95219986 CN2228996Y (en) | 1995-08-22 | 1995-08-22 | Vane for low-noise centrifugal fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 95219986 CN2228996Y (en) | 1995-08-22 | 1995-08-22 | Vane for low-noise centrifugal fan |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2228996Y true CN2228996Y (en) | 1996-06-12 |
Family
ID=33868015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 95219986 Expired - Fee Related CN2228996Y (en) | 1995-08-22 | 1995-08-22 | Vane for low-noise centrifugal fan |
Country Status (1)
Country | Link |
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CN (1) | CN2228996Y (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103671244A (en) * | 2012-09-12 | 2014-03-26 | 任文华 | Impeller and fan comprising same |
US8894354B2 (en) | 2010-09-07 | 2014-11-25 | Dyson Technology Limited | Fan |
US9328739B2 (en) | 2012-01-19 | 2016-05-03 | Dyson Technology Limited | Fan |
US9568006B2 (en) | 2012-05-16 | 2017-02-14 | Dyson Technology Limited | Fan |
US9568021B2 (en) | 2012-05-16 | 2017-02-14 | Dyson Technology Limited | Fan |
US9732763B2 (en) | 2012-07-11 | 2017-08-15 | Dyson Technology Limited | Fan assembly |
US9745996B2 (en) | 2010-12-02 | 2017-08-29 | Dyson Technology Limited | Fan |
US9797414B2 (en) | 2013-07-09 | 2017-10-24 | Dyson Technology Limited | Fan assembly |
US10006657B2 (en) | 2009-03-04 | 2018-06-26 | Dyson Technology Limited | Fan assembly |
US10221860B2 (en) | 2009-03-04 | 2019-03-05 | Dyson Technology Limited | Fan assembly |
US10428837B2 (en) | 2012-05-16 | 2019-10-01 | Dyson Technology Limited | Fan |
CN110469528A (en) * | 2019-09-10 | 2019-11-19 | 洛阳北玻台信风机技术有限责任公司 | A kind of carbon fiber and expanding material sandwich structure centrifugal blower wheel hub and forming method |
-
1995
- 1995-08-22 CN CN 95219986 patent/CN2228996Y/en not_active Expired - Fee Related
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10006657B2 (en) | 2009-03-04 | 2018-06-26 | Dyson Technology Limited | Fan assembly |
US10221860B2 (en) | 2009-03-04 | 2019-03-05 | Dyson Technology Limited | Fan assembly |
US9745988B2 (en) | 2010-09-07 | 2017-08-29 | Dyson Technology Limited | Fan |
US8894354B2 (en) | 2010-09-07 | 2014-11-25 | Dyson Technology Limited | Fan |
US9745996B2 (en) | 2010-12-02 | 2017-08-29 | Dyson Technology Limited | Fan |
US9328739B2 (en) | 2012-01-19 | 2016-05-03 | Dyson Technology Limited | Fan |
US9568006B2 (en) | 2012-05-16 | 2017-02-14 | Dyson Technology Limited | Fan |
US9568021B2 (en) | 2012-05-16 | 2017-02-14 | Dyson Technology Limited | Fan |
US10309420B2 (en) | 2012-05-16 | 2019-06-04 | Dyson Technology Limited | Fan |
US10428837B2 (en) | 2012-05-16 | 2019-10-01 | Dyson Technology Limited | Fan |
US9732763B2 (en) | 2012-07-11 | 2017-08-15 | Dyson Technology Limited | Fan assembly |
CN103671244A (en) * | 2012-09-12 | 2014-03-26 | 任文华 | Impeller and fan comprising same |
US9797414B2 (en) | 2013-07-09 | 2017-10-24 | Dyson Technology Limited | Fan assembly |
CN110469528A (en) * | 2019-09-10 | 2019-11-19 | 洛阳北玻台信风机技术有限责任公司 | A kind of carbon fiber and expanding material sandwich structure centrifugal blower wheel hub and forming method |
CN110469528B (en) * | 2019-09-10 | 2024-03-12 | 洛阳北玻三元流风机技术有限公司 | Centrifugal fan hub with carbon fiber and expansion material sandwich structure and forming method |
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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 |