CN2414236Y - Axial-flow fan - Google Patents
Axial-flow fan Download PDFInfo
- Publication number
- CN2414236Y CN2414236Y CN 00213745 CN00213745U CN2414236Y CN 2414236 Y CN2414236 Y CN 2414236Y CN 00213745 CN00213745 CN 00213745 CN 00213745 U CN00213745 U CN 00213745U CN 2414236 Y CN2414236 Y CN 2414236Y
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Abstract
The utility model discloses an axial-flow fan, which comprises a curved vane type vane wheel. The outer margin of a wheel axle sleeve of the wheel is evenly distributed with three to six twisting curved vanes; the down stream side of an upwind curved surface of each of the vanes is provided with a rectifying protrusion column row. The number of row of the rectifying protrusion column row is from one row to five rows; the number of columns is from two columns to eight columns. The section in the direction of a rotating line of the protrusion forms a backflow line shape; the radial section of the protrusion forms a half trapezoid shape. The fan has the advantages of small size, light weight, low noise and improved whole property. The utility model meets the requirement of an outdoor unit for an air conditioner.
Description
The utility model relates to the improvement of air conditioner outdoor machine, specifically is a kind of axial fan, and it belongs to the blower fan technical field.
Commercially available air conditioner outdoor machine adopts axial fan to carry out forced heat radiation more.This fan generally is provided with four blades.Its blade is narrow and grow, and it is big to occupy the space, thereby the volume of required casing is big.The blade tip place blade exit width of this blade is less, the pressure head of its generation is greater than the pressure head at blade root place, because the shape of this blade has determined that the pressure head at blade different radii place is different, therefore the air-flow Radial Flow might take place, thereby increased loss of pressure head, be unfavorable for the diffusion of air-flow.This fan volume is big, Heavy Weight, and air output is little, and the noise height, complete machine poor performance, the demand of not competent air conditioner outdoor machine.
The purpose of this utility model is that a kind of novel axial fan will be provided, and this fan will improve air quantity under the prerequisite that reduces the fan volume and weight, reduce noise, realizes that the complete machine performance increases substantially, and satisfies the demand of air conditioner outdoor machine.Task of the present utility model is finished by following technological scheme, has developed a kind of axial fan, and it comprises the curved blade type impeller, is evenly equipped with the wide bent blades of twisted shape on the axle sleeve outer rim that this is taken turns, and the curved surface downstream side that facings the wind of this blade is provided with rectification projecting rows row.
This axial fan, described rectification projecting rows is arranged, and its row's number is 1-5 row, and its columns is the 2--8 row, and it is linear that this protruding roulette direction cross section is refluence, and it is partly trapezoidal that this protruding radial cross section is.
This axial fan, the wide bent blades of described twisted shape, it is distributed on the axle sleeve with the 3-6 sheet.
Advantage of the present utility model: because punching press is provided with the rectification projection in the linear cross section of flowing backwards on the blade face of the wide bent blades of twisted shape, eliminated the rotation of air-flow after supercharging, helped the diffusion of air-flow, increased air output.Because the rectification projection of this blade has the effect of eliminating the pressure head growth trend, thereby noise is lower during this blade movement.Because the wide bent blades of distortion of design, it is little to account for volume, in light weight, has improved fan complete machine performance.
Embodiment's accompanying drawings of the present utility model is as follows:
Fig. 1 is the structural front view of axial fan.
Fig. 2 is that rectification projection roulette on the bent blades of axial fan is to sectional view (Q-Q of Fig. 1, S-S sectional view)
Fig. 3 is the bent blades longitudinal section view (T-T of Fig. 1, U-U sectional view) of axial fan.
Make axial fan referring to Fig. 1-3 and be applied to air conditioner outdoor machine.This fan comprises the curved blade type impeller, is evenly equipped with 4 twisted shape bent blades 2 on this axle sleeve of taking turns 1 outer rim.The curved surface downstream side that facings the wind of this blade 2 is provided with rectification projection 3 row rows.This projection 3 row rows of design, its row's number is 2 rows, is preferably 3 rows.Its columns is 5 row, is preferably 6 row.The roulette direction Q-Q of this projection 3, it is as shown in Figure 2 linear that the cross section of S-S is refluence.It is partly as shown in Figure 3 trapezoidal that the radial cross section of this projection 3 is.This fan is big through the experiment air quantity, and noise is low, and volume is little, and is in light weight, complete machine performance height.
Claims (3)
1 one kinds of axial fans, it comprises the curved blade type impeller, it is characterized in that: be evenly equipped with the twisted shape bent blades on the axle sleeve outer rim that this is taken turns, the curved surface downstream side that facings the wind of this blade is provided with rectification projecting rows row.
2 according to the described axial fan of claim 1, it is characterized in that: described rectification projecting rows is arranged, and its row's number is 1-5 row, and its columns is the 2-8 row, and it is linear that this protruding roulette direction cross section is refluence, and it is partly trapezoidal that this protruding radial cross section is.
3 according to the described axial fan of claim 1, it is characterized in that: described twisted shape bent blades, it is distributed on the axle sleeve with the 3-6 sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00213745 CN2414236Y (en) | 2000-03-16 | 2000-03-16 | Axial-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00213745 CN2414236Y (en) | 2000-03-16 | 2000-03-16 | Axial-flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2414236Y true CN2414236Y (en) | 2001-01-10 |
Family
ID=33579976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00213745 Expired - Fee Related CN2414236Y (en) | 2000-03-16 | 2000-03-16 | Axial-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2414236Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455818C (en) * | 2003-10-31 | 2009-01-28 | 乐金电子(天津)电器有限公司 | Spiral blast fan devcie |
| CN102562662A (en) * | 2012-02-17 | 2012-07-11 | 美的集团有限公司 | Axial flow wind wheel |
| CN101749282B (en) * | 2008-12-22 | 2015-04-29 | 联想(北京)有限公司 | Fan, heat dissipation module and computer adopting fan and method for reducing noise of fan |
| CN110043514A (en) * | 2018-01-15 | 2019-07-23 | 上海博泽电机有限公司 | A kind of cooling fan of low harmony wave noise |
| CN110043515A (en) * | 2018-01-15 | 2019-07-23 | 上海博泽电机有限公司 | A kind of cooling fan of low harmony wave noise |
| CN111043081A (en) * | 2019-12-20 | 2020-04-21 | 秦皇岛首创思泰意达环保科技有限公司 | Axial fan and application thereof in remote mist sprayer |
| US11371530B2 (en) | 2019-10-08 | 2022-06-28 | Delta Electronics, Inc. | Fan and fan impeller thereof |
| TWI800358B (en) * | 2022-04-25 | 2023-04-21 | 建準電機工業股份有限公司 | Impeller and cooling fan including the same |
-
2000
- 2000-03-16 CN CN 00213745 patent/CN2414236Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455818C (en) * | 2003-10-31 | 2009-01-28 | 乐金电子(天津)电器有限公司 | Spiral blast fan devcie |
| CN101749282B (en) * | 2008-12-22 | 2015-04-29 | 联想(北京)有限公司 | Fan, heat dissipation module and computer adopting fan and method for reducing noise of fan |
| CN102562662A (en) * | 2012-02-17 | 2012-07-11 | 美的集团有限公司 | Axial flow wind wheel |
| CN110043514A (en) * | 2018-01-15 | 2019-07-23 | 上海博泽电机有限公司 | A kind of cooling fan of low harmony wave noise |
| CN110043515A (en) * | 2018-01-15 | 2019-07-23 | 上海博泽电机有限公司 | A kind of cooling fan of low harmony wave noise |
| US11371530B2 (en) | 2019-10-08 | 2022-06-28 | Delta Electronics, Inc. | Fan and fan impeller thereof |
| CN111043081A (en) * | 2019-12-20 | 2020-04-21 | 秦皇岛首创思泰意达环保科技有限公司 | Axial fan and application thereof in remote mist sprayer |
| TWI800358B (en) * | 2022-04-25 | 2023-04-21 | 建準電機工業股份有限公司 | Impeller and cooling fan including the same |
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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 |