CN102003413A - Fan blade of ventilation fan - Google Patents
Fan blade of ventilation fan Download PDFInfo
- Publication number
- CN102003413A CN102003413A CN 201010600728 CN201010600728A CN102003413A CN 102003413 A CN102003413 A CN 102003413A CN 201010600728 CN201010600728 CN 201010600728 CN 201010600728 A CN201010600728 A CN 201010600728A CN 102003413 A CN102003413 A CN 102003413A
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- Prior art keywords
- blade
- fan
- fan blade
- ventilation
- ventilation fan
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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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- 238000009423 ventilation Methods 0.000 title claims abstract description 16
- 239000007769 metal material Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000002000 scavenging effect Effects 0.000 description 4
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Abstract
The invention relates to a fan blade of a ventilator, which comprises a cylindrical hub (1) and more than one blade (2), and is characterized in that more than one guide groove (22) is arranged on the leeward side of a suction surface (21) of the blade (2). In addition, the guide grooves are arranged along the rotation direction of the fan blades, so that the air on the surfaces of the blades flows more smoothly in the rotation process of the fan blades, and the efficiency of the ventilation fan is greatly improved.
Description
Technical field
The present invention relates to a kind of fan blade of ventilation fan, belong to the improvement technology of ventilation fan fan blade.
Background technique
As everyone knows, the sound that bird sends when aloft flying is minimum, is difficult to all hear that to people's ear sometimes its reason is that the air that flows through the pinion surface produces turbulent phenomenon hardly for a short time, and air flows is very smooth and easy; In like manner, the blade structure of fan product is scavenging efficiency and the pneumatic noise that the shape of leaf and leaf cross-section of the key factor, particularly blade of the whole fan performance of decision directly has influence on the gas fan.
At present, commercially available industry or household ventilation fan all use the fan blade of single-stage band air duct structure usually, fan blade leaf varied, except indivedual producers can do the design and processing of some stiffening ribs with increase fan blade intensity on the fan blade surface, seldom there is product on blade structure, to try every possible means to improve the scavenging efficiency of ventilation fan and the pneumatic noise of reduction fan blade, therefore, the scavenging efficiency of ventilation fan product in the market is not high, pneumatic noise is bigger, and technical order is all undesirable.
Summary of the invention
The present invention relates to a kind of scavenging efficiency height, the fan blade of the ventilation fan of low noise.
Technological scheme of the present invention is: a kind of fan blade of ventilation fan, comprise cylindrical bosses and a slice with upper blade, and it is characterized in that a side leeward on the suction surface of blade is provided with one or more guiding gutter.
Described guiding gutter is provided with along the fan blade sense of rotation.
The thickness of the medium position of described blade lateral cross section is the thickest.
Described blade is made by plastics or metallic material.
The present invention is because employing leeward side on the suction surface of blade is provided with the structure of guiding gutter, alleviated the turbulent phenomenon of blade surface and leeward side, reach the purpose that reduces noise, in addition, guiding gutter is provided with along the fan blade sense of rotation, fan blade is in rotary course, and the air flows of blade surface is more smooth and easy, has improved ventilation fan efficient greatly.
Description of drawings
Fig. 1 is the front schematic perspective view of fan blade of the present invention;
Fig. 2 is the back schematic perspective view of fan blade of the present invention;
Fig. 3 is the positive sense of rotation schematic representation of fan blade of the present invention;
Fig. 4 is an A-A cut-away view among Fig. 3.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, 2, 3, the fan blade of ventilation fan of the present invention comprises cylindrical bosses 1 and five blades 2, and a leeward side is provided with three guiding gutters 22 on the suction surface 21 of blade 2.
For the air flows that makes blade surface is more smooth and easy, described guiding gutter 22 is provided with along the fan blade sense of rotation.
As shown in Figure 4, the thickness of the medium position 23 of described blade 2 lateral cross section is the thickest.
In the present embodiment, described blade 2 is made by plastics or metallic material.
Claims (4)
1. the fan blade of a ventilation fan comprises cylindrical bosses (1) and a slice with upper blade (2), it is characterized in that the last leeward side of suction surface (21) of blade (2) is provided with one or more guiding gutter (22).
2. the fan blade of ventilation fan according to claim 1 is characterized in that described guiding gutter (22) is provided with along the fan blade sense of rotation.
3. the fan blade of ventilation fan according to claim 1 is characterized in that the thickness of medium position (23) of described blade (2) lateral cross section is the thickest.
4. according to the fan blade of each described ventilation fan of claim 1 to 3, it is characterized in that described blade (2) made by plastics or metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010600728 CN102003413A (en) | 2010-12-23 | 2010-12-23 | Fan blade of ventilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010600728 CN102003413A (en) | 2010-12-23 | 2010-12-23 | Fan blade of ventilation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102003413A true CN102003413A (en) | 2011-04-06 |
Family
ID=43811039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010600728 Pending CN102003413A (en) | 2010-12-23 | 2010-12-23 | Fan blade of ventilation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102003413A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278206A (en) * | 2011-05-02 | 2011-12-14 | 李仕清 | Engine with large thrust-weight ratio |
| CN103629129A (en) * | 2013-11-20 | 2014-03-12 | 广州商科信息科技有限公司 | Fan and fan device |
| WO2017084611A1 (en) * | 2015-11-21 | 2017-05-26 | 佛山市顺德区苇源电器有限公司 | Low-noise ceiling fan |
| CN108869394A (en) * | 2018-09-14 | 2018-11-23 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
| CN109026837A (en) * | 2018-10-16 | 2018-12-18 | 王永挺 | A kind of exhaust fan and its fan leaf |
| WO2020073478A1 (en) * | 2018-10-08 | 2020-04-16 | 中山市特斯拉克磁电科技有限公司 | Novel fan blade, tail fin and fan structure |
| CN114506443A (en) * | 2022-02-23 | 2022-05-17 | 北京航空航天大学 | Blade with guide structure, rotor, and blade design method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2437887Y (en) * | 2000-07-10 | 2001-07-04 | 安徽天大(集团)股份有限公司工程塑料厂 | Axial ventilator with hemmed blade |
| CN1710290A (en) * | 2005-07-12 | 2005-12-21 | 吉林大学 | Low noise fan blade |
| US20050287005A1 (en) * | 2004-06-25 | 2005-12-29 | Erhard Gruber | Impeller, in particular for an axial fan |
| CN2767723Y (en) * | 2005-01-14 | 2006-03-29 | 威海克莱特菲尔风机有限公司 | Axial flow fan having hyperboloidal sweepforward blade with knifes on surface |
| CN201159203Y (en) * | 2008-05-18 | 2008-12-03 | 威海克莱特菲尔风机有限公司 | Low noise axial fan blade |
| CN201560981U (en) * | 2009-07-15 | 2010-08-25 | 鑫贺精密电子(东莞)有限公司 | Blade structure of radiation fan |
-
2010
- 2010-12-23 CN CN 201010600728 patent/CN102003413A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2437887Y (en) * | 2000-07-10 | 2001-07-04 | 安徽天大(集团)股份有限公司工程塑料厂 | Axial ventilator with hemmed blade |
| US20050287005A1 (en) * | 2004-06-25 | 2005-12-29 | Erhard Gruber | Impeller, in particular for an axial fan |
| CN2767723Y (en) * | 2005-01-14 | 2006-03-29 | 威海克莱特菲尔风机有限公司 | Axial flow fan having hyperboloidal sweepforward blade with knifes on surface |
| CN1710290A (en) * | 2005-07-12 | 2005-12-21 | 吉林大学 | Low noise fan blade |
| CN201159203Y (en) * | 2008-05-18 | 2008-12-03 | 威海克莱特菲尔风机有限公司 | Low noise axial fan blade |
| CN201560981U (en) * | 2009-07-15 | 2010-08-25 | 鑫贺精密电子(东莞)有限公司 | Blade structure of radiation fan |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278206A (en) * | 2011-05-02 | 2011-12-14 | 李仕清 | Engine with large thrust-weight ratio |
| CN102278206B (en) * | 2011-05-02 | 2017-07-28 | 李仕清 | A kind of big thrust loading engine |
| CN103629129A (en) * | 2013-11-20 | 2014-03-12 | 广州商科信息科技有限公司 | Fan and fan device |
| WO2017084611A1 (en) * | 2015-11-21 | 2017-05-26 | 佛山市顺德区苇源电器有限公司 | Low-noise ceiling fan |
| CN108869394A (en) * | 2018-09-14 | 2018-11-23 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
| WO2020073478A1 (en) * | 2018-10-08 | 2020-04-16 | 中山市特斯拉克磁电科技有限公司 | Novel fan blade, tail fin and fan structure |
| CN109026837A (en) * | 2018-10-16 | 2018-12-18 | 王永挺 | A kind of exhaust fan and its fan leaf |
| CN109026837B (en) * | 2018-10-16 | 2024-02-13 | 王永挺 | Exhaust fan and fan blade thereof |
| CN114506443A (en) * | 2022-02-23 | 2022-05-17 | 北京航空航天大学 | Blade with guide structure, rotor, and blade design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110406 |