CN201934380U - Fan blade of ventilation fan - Google Patents
Fan blade of ventilation fan Download PDFInfo
- Publication number
- CN201934380U CN201934380U CN2010206748846U CN201020674884U CN201934380U CN 201934380 U CN201934380 U CN 201934380U CN 2010206748846 U CN2010206748846 U CN 2010206748846U CN 201020674884 U CN201020674884 U CN 201020674884U CN 201934380 U CN201934380 U CN 201934380U
- Authority
- CN
- China
- Prior art keywords
- blade
- fan
- fan blade
- guiding gutter
- utility
- 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
Links
- 238000009423 ventilation Methods 0.000 title claims description 15
- 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
- 239000002516 radical scavenger Substances 0.000 abstract 2
- 230000002000 scavenging effect Effects 0.000 description 4
Images
Abstract
The utility model relates to a fan blade of scavenger fan, including cylindrical wheel hub (1) and blade (2) more than a slice, one side of leeward is provided with more than one guiding gutter (22) on suction surface (21) of its characterized in that blade (2). The utility model discloses owing to adopt the structure that one side of leeward is provided with the guiding gutter on the suction surface of blade, alleviateed the turbulent phenomenon of blade surface and leeward side, reach the purpose of noise reduction, in addition, the guiding gutter sets up along fan blade direction of rotation, and the fan blade is at rotatory in-process, and the air flow on blade surface is more smooth and easy, has improved scavenger fan efficiency greatly.
Description
Technical field
The utility model relates to a kind of fan blade of ventilation fan, belongs 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 utility model relates to a kind of scavenging efficiency height, the fan blade of the ventilation fan of low noise.
The technical solution of the utility model 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 utility model 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 the utility model fan blade;
Fig. 2 is the back schematic perspective view of the utility model fan blade;
Fig. 3 is the positive sense of rotation schematic representation of the utility model fan blade;
Fig. 4 is an A-A cut-away view among Fig. 3.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, 2, 3, the fan blade of the utility model ventilation fan 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 |
|---|---|---|---|
| CN2010206748846U CN201934380U (en) | 2010-12-23 | 2010-12-23 | Fan blade of ventilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206748846U CN201934380U (en) | 2010-12-23 | 2010-12-23 | Fan blade of ventilation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934380U true CN201934380U (en) | 2011-08-17 |
Family
ID=44445899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206748846U Expired - Fee Related CN201934380U (en) | 2010-12-23 | 2010-12-23 | Fan blade of ventilation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934380U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588338A (en) * | 2012-03-01 | 2012-07-18 | Tcl空调器(中山)有限公司 | Axial fan |
| CN109469643A (en) * | 2018-10-31 | 2019-03-15 | 广东美的制冷设备有限公司 | Axial-flow windwheel, axial flow blower, air conditioner indoor unit and air-conditioner outdoor unit |
| CN109630436A (en) * | 2019-01-23 | 2019-04-16 | 四川贝特风机有限公司 | A kind of centrifugal fan |
-
2010
- 2010-12-23 CN CN2010206748846U patent/CN201934380U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588338A (en) * | 2012-03-01 | 2012-07-18 | Tcl空调器(中山)有限公司 | Axial fan |
| CN102588338B (en) * | 2012-03-01 | 2015-11-18 | Tcl空调器(中山)有限公司 | Axial fan |
| CN109469643A (en) * | 2018-10-31 | 2019-03-15 | 广东美的制冷设备有限公司 | Axial-flow windwheel, axial flow blower, air conditioner indoor unit and air-conditioner outdoor unit |
| CN109630436A (en) * | 2019-01-23 | 2019-04-16 | 四川贝特风机有限公司 | A kind of centrifugal fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206785722U (en) | A kind of noise reduction drag reduction fan | |
| CN102003413A (en) | Fan blade of ventilation fan | |
| CN203756593U (en) | High-efficient centrifugal wind wheel | |
| CN103062112A (en) | Road cleaning unit and centrifugal fan impeller thereof | |
| CN202326408U (en) | Efficient centrifugal ventilator blade structure | |
| CN201934380U (en) | Fan blade of ventilation fan | |
| CN106368983A (en) | High-efficiency low-noise pearly nautilus bionic fan | |
| CN206246413U (en) | A kind of forward multiple wing centrifugal fan | |
| CN203230624U (en) | Centrifugal fan rotor, centrifugal fan and air cooling refrigerator | |
| CN203500110U (en) | High-efficiency backward centrifugal vane wheel | |
| CN205173055U (en) | Low noise that trailing edge is buckled does not have spiral case fan wheel | |
| CN205331055U (en) | A impeller for fan | |
| CN101634312A (en) | Fan blades of axial flow fan | |
| CN202789716U (en) | Centrifugal wind wheel | |
| CN205126108U (en) | Dust collector motor | |
| CN201679746U (en) | Low-noise axial flow fan | |
| CN204357773U (en) | A kind of breeze fan of cylinder cabinet-type air conditioner and snail tongue thereof | |
| CN205013374U (en) | Silence structure of fan blade | |
| CN202659571U (en) | Axial-flow fan blade and air conditioner comprising axial-flow fan blades | |
| CN103511340B (en) | Axial-flow leaf and comprise the air-conditioning of this axial-flow leaf | |
| CN205401248U (en) | Tooth -like transmission centrifugal compressor diffuser | |
| CN202381392U (en) | Fixed impeller with improved air quantity and motor thereof | |
| CN102927046A (en) | Low-noise efficient impeller of axial-flow fan | |
| CN205689489U (en) | A kind of centrifugation blade, centrifugal blower and air-conditioning equipment | |
| CN206571735U (en) | A kind of motor impeller blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20121223 |