CN201568371U - Fan blade for axial cooling air machine of external rotor - Google Patents
Fan blade for axial cooling air machine of external rotor Download PDFInfo
- Publication number
- CN201568371U CN201568371U CN2009202680540U CN200920268054U CN201568371U CN 201568371 U CN201568371 U CN 201568371U CN 2009202680540 U CN2009202680540 U CN 2009202680540U CN 200920268054 U CN200920268054 U CN 200920268054U CN 201568371 U CN201568371 U CN 201568371U
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- Prior art keywords
- fan blade
- rear end
- cooling air
- reduced
- external rotor
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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.)
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Abstract
The utility model relates to a fan blade for an axial cooling air machine of an external rotor, which is provided with a fan blade body (1) comprising a rear end (3) and a front end (4). The utility model is characterized in that the rear end (3) is provided with a plurality of radial reinforcing ribs (2); the front end (4) is provided with a plurality of cross reinforcing ribs (5); and the radial reinforcing ribs (2) are arc bodies, and are smoothly transitional. The cross area of the fan blade for an axial cooling air machine of an external rotor is large, so the supporting rigid is improved, the vibration caused by wind pressure is reduced, and the noise is reduced. The wind resistance of the fan blade is reduced by the arc smooth radial reinforcing ribs (2), meanwhile, the noise is also reduced, and the comfort of the peripheral environment is improved.
Description
Technical field
The utility model relates to a kind of outer rotor shaft flow fan component, is the outer rotor shaft flow fan fan blade that a kind of support stiffness is good, windage is little, noise is low specifically.
Background technique
Along with progress of science and technology, in HVAC, refrigeration and building service industry, people progressively adopt external rotor electric machine to replace inner rotor motor, thereby save the space, reduce energy consumption, reduce noise, and external rotor electric machine progressively at home, be used widely outward.It is exactly the high speed rotating of fan blade that blower fan produces one of main source of noise, so the good job of fan blade design just becomes an important symbol of fan performance.Therefore existing outer rotor shaft flow fan fan blade is because the rear end width is less, and when fan blade was told rotation, not only support stiffness was poor, and vibrates relatively largely, and therefore the noise that produces is just bigger; And, be provided with unreasonablely because the stiffening rib smoothness on the fan blade is bad, when high speed rotating, windage is also bigger, also can produce bigger noise.
As mentioned above, there is following deficiency in prior art: the rear end width is less, and support stiffness is poor, and Oscillation Amplitude is big; The stiffening rib smoothness is bad, and windage is big, produces bigger noise.
Summary of the invention
It is bad that the utility model has solved the stiffening rib smoothness that prior art exists, and windage is big, produces the problem of bigger noise, the outer rotor shaft flow fan that a kind of smoothness is good, windage is little fan blade is provided.
The utility model has solved also that the fan blade rear end width that prior art exists is less, and support stiffness is poor, and the problem that Oscillation Amplitude is big provides a kind of rear end roomy bigger, and support stiffness is good, and the little outer rotor shaft flow fan fan blade of Oscillation Amplitude.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: a kind of outer rotor shaft flow fan fan blade, one fan blade body is arranged, comprise rear end and front end, it is characterized in that described rear end is provided with some radially stiffening ribs, front end is provided with some horizontal stiffening ribs, and radially stiffening rib is arc body and smooth transition.This arc is the design of stiffening rib radially, when strengthening intensity, has reduced windage, thereby has reduced noise, improves the comfort level of surrounding enviroment.
As preferably, described fan blade body rear end is wide to be 80～100mm.Compare the rear end of original 75mm, this width can increase more than 20%, has strengthened support stiffness well, has reduced vibration amplitude, has reduced noise.
As preferably, described radially stiffening rib is 2～4.Described horizontal stiffening rib is 2～4.Radially stiffening rib the best is 3, and laterally stiffening rib the best is 2, has reduced windage when strengthening intensity.
The utility model is skillfully constructed, and fan blade makes it have following beneficial effect compared with the prior art by the setting of the rear end of smooth arc stiffening rib and big width:
1, smoothness is good, and windage is little;
2, support stiffness is good, and Oscillation Amplitude is little, and noise is low.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model:
Fig. 2 is that the A-A of Fig. 1 is to the structural profile schematic representation.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described further.
Embodiment.See Fig. 1 and Fig. 2, this outer rotor shaft flow fan fan blade has a fan blade body 1, comprises rear end 3 and front end 4, and described rear end 3 is provided with some radially stiffening ribs 2, and front end 4 is provided with some horizontal stiffening ribs 5, and radially stiffening rib 2 is arc body and smooth transition.Described fan blade body 1 rear end is wide to be 80～100mm.
Wherein, described radially stiffening rib 2 is 2～4, and the best is 3; Laterally stiffening rib 5 is 2～4, and the best is 2.
It is apparent to one skilled in the art that the utility model can be changed into multiple mode, and such change is not thought and broken away from scope of the present utility model.What all were such will be included within the scope of this claim the conspicuous modification of described those skilled in the art.
Claims (5)
1. outer rotor shaft flow fan fan blade, one fan blade body (1) is arranged, comprise rear end (3) and front end (4), it is characterized in that described rear end (3) is provided with some radially stiffening ribs (2), front end (4) is provided with some horizontal stiffening ribs (5), and radially stiffening rib (2) is arc body and smooth transition.
2. outer rotor shaft flow fan fan blade according to claim 1, body (1) wide 80～100mm of being in rear end when it is characterized in that described wind.
3. outer rotor shaft flow fan fan blade according to claim 1 and 2 is characterized in that described radially stiffening rib (2) is 2～4.
4. outer rotor shaft flow fan fan blade according to claim 1 and 2 is characterized in that described horizontal stiffening rib (5) is 2～4.
5. outer rotor shaft flow fan fan blade according to claim 3 is characterized in that described horizontal stiffening rib (5) is 2～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202680540U CN201568371U (en) | 2009-11-07 | 2009-11-07 | Fan blade for axial cooling air machine of external rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202680540U CN201568371U (en) | 2009-11-07 | 2009-11-07 | Fan blade for axial cooling air machine of external rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568371U true CN201568371U (en) | 2010-09-01 |
Family
ID=42660656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202680540U Expired - Lifetime CN201568371U (en) | 2009-11-07 | 2009-11-07 | Fan blade for axial cooling air machine of external rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886690A (en) * | 2019-12-10 | 2020-03-17 | 江西卡帕气体技术有限公司 | Air compressor machine box that convection heat dissipation just made an uproar falls |
-
2009
- 2009-11-07 CN CN2009202680540U patent/CN201568371U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886690A (en) * | 2019-12-10 | 2020-03-17 | 江西卡帕气体技术有限公司 | Air compressor machine box that convection heat dissipation just made an uproar falls |
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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: WENLING SANMU MACHINE ELECTRICITY CO., LTD. Free format text: FORMER OWNER: CHEN XUESEN Effective date: 20120629 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120629 Address after: 317515 Central Industrial Zone, Chengnan Town, Wenling City, Zhejiang Patentee after: Wenling Sanmu Machine Electricity Co., Ltd. Address before: 317515 Zhejiang city in Wenling Province, south of the town center of Wenling City Industrial Zone Sunwood electromechanical Co. Ltd. Patentee before: Chen Xuesen |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |