CN200940604Y - Axial flow fan of air conditioner - Google Patents
Axial flow fan of air conditioner Download PDFInfo
- Publication number
- CN200940604Y CN200940604Y CN 200620087738 CN200620087738U CN200940604Y CN 200940604 Y CN200940604 Y CN 200940604Y CN 200620087738 CN200620087738 CN 200620087738 CN 200620087738 U CN200620087738 U CN 200620087738U CN 200940604 Y CN200940604 Y CN 200940604Y
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- CN
- China
- Prior art keywords
- axial flow
- fan
- air conditioner
- utility
- flow fan
- 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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Abstract
The utility model relates to an air conditioner axial flow fan for solving the technology problem which exists in the existing technology that the axial flow fan has a relative higher noise. To realize the objective, the air conditioner axial flow fan comprises a fan blade which is characterized in that the edge of the fan blade is provided with sawtooth. Due to adopting the structure, the utility model adopts sawtooth structure on the tail of the axial flow fan blade, thus the surface laminar flow of the blade is turned into turbulent flow and the generation of the resonance amplification T-S wave is avoided, so the noise of the fan is effectively reduced. The utility is provided with simple manufacture, lower cost and good noise reduction effect.
Description
Technical field
The utility model relates to air conditioner, specifically to having a kind of improvement of air conditioner outdoor machine axial fan now.
Background technique
Along with improving constantly of living standard, air conditioner is more and more universal.The Consumer is also more and more higher to quality, the performance requirement of air conditioner.At present, air conditioner outdoor machine ubiquity noise is bigger, and this noise mainly is made up of noise of motor and fan noise.Because air conditioner outdoor machine generally adopts axial fan to carry out forced-convection heat transfer, fan noise is produced by axial fan, the eddy current that fan noise and impeller produce in air flows is closely related, when impeller trailing edge place trailing vortex comes off the sound wave that produces and blade surface when satisfying certain and concern near two-dimentional T-S wave frequency, will form feedback loop and resonance takes place and amplify the T-S ripple, the trailing vortex shedding frequence is locked, on frequency spectrum, form a relatively peak of point, form the bigger fan blade surface eddy current noise that comes off.Can form feedback loop and cause the laminar boundary layer noise when meeting the following conditions: 1, the wave zone, flow field is positioned at the upstream position of sound source radiation point; 2, sound source radiation point is on the blade wake passing line; 3, produce the fluid boundary laminar surface of the fluid fluctuation of sound source at object; 4, the surface, boundary layer keeps laminar flow not by brokenization on the whole surface of feedback path.Therefore, in order to prevent that forming feedback loop causes the laminar boundary layer noise, need carry out some improvement to axial flow fan structure.
Summary of the invention
The purpose of this utility model is for big this technical problem of axial fan noise that solves the prior art existence, and the less air conditioner axial flow fan of a kind of fan noise that provides.
To achieve these goals, the utility model air conditioner axial flow fan comprises fan blade, it is characterized in that: described fan blade edge is provided with saw shape tooth.
In order to reach better noise reduction, in the further detailed structure of the utility model, also have following technical characteristics: described saw shape tooth is arranged on fan blade empennage place.
In the further detailed structure of the utility model, also have following technical characteristics: described saw shape tooth evenly is provided with.
The utlity model has following advantage and good effect: because the utility model has adopted said structure, the place has adopted saw tooth structure at axial fan blade empennage, make the blade surface laminar flow convert turbulent flow to, the generation of having avoided resonance to amplify the T-S ripple has reduced fan noise effectively.The utility model is made simply, cost is low, excellent noise reduction effect.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 the utility model axial fan plan view.
1, fan blade; 2, blade empennage; 3, saw shape tooth; 4, blade front wing.
Embodiment
Referring to Fig. 1, the utility model air conditioner axial flow fan comprises fan blade 1, is provided with saw shape tooth 3 at the empennage place 2 of fan blade 1, and this saw shape tooth 3 evenly is provided with.Like this, make the blade surface laminar flow convert turbulent flow to, the generation of having avoided resonance to amplify the T-S ripple has reduced fan noise effectively.In addition, saw shape tooth 3 also can be arranged on blade front wing 4 places, but noise reduction is not as being located at blade empennage 2 places.
Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (3)
1, a kind of air conditioner axial flow fan, it comprises fan blade, it is characterized in that: described fan blade edge is provided with saw shape tooth.
2, air conditioner axial flow fan according to claim 1 is characterized in that: described saw shape tooth is arranged on fan blade empennage place.
3, air conditioner axial flow fan according to claim 1 and 2 is characterized in that: described saw shape tooth evenly is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087738 CN200940604Y (en) | 2006-08-07 | 2006-08-07 | Axial flow fan of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087738 CN200940604Y (en) | 2006-08-07 | 2006-08-07 | Axial flow fan of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200940604Y true CN200940604Y (en) | 2007-08-29 |
Family
ID=38746781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620087738 Expired - Fee Related CN200940604Y (en) | 2006-08-07 | 2006-08-07 | Axial flow fan of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200940604Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022380A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow fan |
| CN102022381A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow blade |
| CN102635573A (en) * | 2012-04-27 | 2012-08-15 | 浙江理工大学 | Tooth-shaped trailing edge axial flow fan |
| CN102865237A (en) * | 2012-09-27 | 2013-01-09 | 宁波狮球通风机电有限公司 | Axial flow fan |
| CN104033408A (en) * | 2013-03-06 | 2014-09-10 | 福州斯狄渢电热水器有限公司 | Double-vane fan capable of warming |
| CN105422507A (en) * | 2014-09-09 | 2016-03-23 | 苏州金莱克精密机械有限公司 | Blower |
| CN106939900A (en) * | 2017-04-10 | 2017-07-11 | 温州职业技术学院 | A kind of turbulent low noise draught fan impeller |
| CN108087308A (en) * | 2017-12-31 | 2018-05-29 | 青岛众力风机有限公司 | A kind of aerofoil fan |
| CN108291559A (en) * | 2015-11-30 | 2018-07-17 | 三星电子株式会社 | Blower fan and air-conditioning with the blower fan |
| CN109312759A (en) * | 2016-07-01 | 2019-02-05 | 三菱电机株式会社 | Propeller fan |
-
2006
- 2006-08-07 CN CN 200620087738 patent/CN200940604Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022381A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow blade |
| CN102022380B (en) * | 2011-01-01 | 2012-11-21 | 杭州顿力电器有限公司 | Bionic axial-flow fan |
| CN102022381B (en) * | 2011-01-01 | 2012-12-12 | 杭州顿力电器有限公司 | Bionic axial-flow blade |
| CN102022380A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow fan |
| CN102635573A (en) * | 2012-04-27 | 2012-08-15 | 浙江理工大学 | Tooth-shaped trailing edge axial flow fan |
| CN102865237A (en) * | 2012-09-27 | 2013-01-09 | 宁波狮球通风机电有限公司 | Axial flow fan |
| CN102865237B (en) * | 2012-09-27 | 2016-01-27 | 宁波狮球通风机电有限公司 | Axial-flow blower |
| CN104033408B (en) * | 2013-03-06 | 2016-12-28 | 福州斯狄渢电热水器有限公司 | A kind of double fan blade fans of warm |
| CN104033408A (en) * | 2013-03-06 | 2014-09-10 | 福州斯狄渢电热水器有限公司 | Double-vane fan capable of warming |
| CN105422507A (en) * | 2014-09-09 | 2016-03-23 | 苏州金莱克精密机械有限公司 | Blower |
| CN108291559A (en) * | 2015-11-30 | 2018-07-17 | 三星电子株式会社 | Blower fan and air-conditioning with the blower fan |
| EP3343045A4 (en) * | 2015-11-30 | 2018-10-03 | Samsung Electronics Co., Ltd. | Blower fan and air conditioner having same |
| US11041506B2 (en) | 2015-11-30 | 2021-06-22 | Samsung Electronics Co., Ltd. | Blower fan and air conditioner having same |
| CN108291559B (en) * | 2015-11-30 | 2021-07-13 | 三星电子株式会社 | Air blowing fan and air conditioner with same |
| CN109312759A (en) * | 2016-07-01 | 2019-02-05 | 三菱电机株式会社 | Propeller fan |
| CN106939900A (en) * | 2017-04-10 | 2017-07-11 | 温州职业技术学院 | A kind of turbulent low noise draught fan impeller |
| CN108087308A (en) * | 2017-12-31 | 2018-05-29 | 青岛众力风机有限公司 | A kind of aerofoil fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QINGDAO HISENSE AIR CONDITIONING CO. Free format text: FORMER OWNER: HAIXIN GROUP CO., LTD.; PATENTEE Effective date: 20071012 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071012 Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Haisense Air Conditioner Co., Ltd., Qingdao Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Co-patentee before: Haisense Air Conditioner Co., Ltd., Qingdao Patentee before: Hisense Group Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: HISENSE( SHANDONG ) AIR CONDITIONING CO., LTD. Free format text: FORMER OWNER: QINGDAO HISENSE AIR CONDITIONING CO. Effective date: 20080425 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080425 Address after: Shandong City, Qingdao province Jiangxi City Road 11, zip code: 266071 Patentee after: Hisense (Shandong) Air-Conditioning Co., Ltd. Address before: Shandong City, Qingdao province Jiangxi City Road 11, zip code: 266071 Patentee before: Haisense Air Conditioner Co., Ltd., Qingdao |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 Termination date: 20150807 |
|
| EXPY | Termination of patent right or utility model |