CN220378547U - Axial flow fan blade capable of simulating fish scales - Google Patents
Axial flow fan blade capable of simulating fish scales Download PDFInfo
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- CN220378547U CN220378547U CN202321896081.9U CN202321896081U CN220378547U CN 220378547 U CN220378547 U CN 220378547U CN 202321896081 U CN202321896081 U CN 202321896081U CN 220378547 U CN220378547 U CN 220378547U
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- fan blade
- axial flow
- scales
- flow fan
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 239000011664 nicotinic acid Substances 0.000 claims abstract description 16
- 238000001746 injection moulding Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an axial flow fan blade with bionic fish scales, which comprises a blade, wherein a plurality of scales are arranged on the suction surface of the blade at intervals, each scale is convexly arranged on the suction surface of the blade, a fluid diversion gap with gradually changed gaps is formed between two adjacent scales, pits or protrusions which are arranged on the blade at the same interval are omitted, and the air output of the fan blade is improved through the fluid diversion gap with gradually changed gaps. Through the diverging gap of gradual change fluid, effectively improve the air output of fan blade, through be equipped with a plurality of convex scale on the suction face of blade, effectively reduce the blade suction face and fluidic contact surface, reduced the fluid resistance when the fan blade operates, efficiency and the energy conversion efficiency of fan blade are improved, a plurality of scale forms the strengthening rib on the blade, the running stability and the vibration resistance of fan blade have been improved, arrangement mode and/or the shape on the blade through setting up a plurality of scale help reducing the aerodynamic noise that the fan blade produced when rotatory.
Description
Technical Field
The utility model relates to the technical field of fans driving airflow, in particular to an axial flow fan blade capable of simulating fish scales.
Background
In order to reduce noise, the existing axial flow fan blade is usually provided with a plurality of circular protrusions or recesses, such as a noise reduction axial flow fan blade disclosed in chinese patent No. 2020231816731.
And a noise reduction blade disclosed in chinese patent No. 202220233339.6.
The intervals among the circular bulges of the two fan blades are basically consistent, so that the air output of the fan blades is not ideal. Thus, there is a need for further improvement.
Disclosure of Invention
The utility model aims to provide an axial flow fan blade with bionic fish scales, a plurality of scales are arranged on the suction surface of the blade at intervals, each scale is convexly arranged on the suction surface of the blade, a fluid diversion gap with gradually changed gaps is formed between two adjacent scales, the air output of the fan blade is effectively improved through the fluid diversion gap with gradually changed gaps, the contact area between the suction surface of the blade and the fluid is effectively reduced through the plurality of convex scales arranged on the suction surface of the blade, the fluid resistance of the fan blade in operation is reduced, the efficiency and the energy conversion efficiency of the fan blade are improved, a plurality of scales form reinforcing ribs on the blade, the operation stability and the vibration resistance of the fan blade are improved, and the arrangement mode and/or the shape of the plurality of scales on the blade are beneficial to reducing the pneumatic noise generated when the fan blade rotates.
According to the axial flow fan blade of bionic fish scale of this purpose design, including the blade that sets up along the wheel hub outside, be equipped with the scale that a plurality of interval set up on the suction side of blade, every scale protrusion sets up on the suction side of blade, and forms the fluid reposition of redundant personnel clearance of clearance gradual change between two adjacent scales, cancel to set up the pit or the arch that equally interval set up on the blade now, through the fluid reposition of redundant personnel clearance of clearance gradual change, improve the air output of fan blade.
The air inlet and air outlet of the blade are respectively communicated with the fluid diversion gaps, and fluid on the blade forms a plurality of airflows flowing to the air outlet through the fluid diversion gaps among the plurality of scales, so that the air outlet of the blade is effectively improved.
The scales and the blades are formed into a whole through injection molding, and the scales and the blades are arranged into a whole, so that the scales are prevented from falling off easily when the fan blades run.
The scales are fixed on the blades through adhesion.
The wind facing arc position is arranged on the blade corresponding to the suction surface, so that the suction surface can smoothly intake air, and noise is effectively reduced.
Each fluid split gap is gradually increased along the fluid outlet of the blade. The fluid is compressed when entering each fluid diversion gap, and the compressed fluid expands when flowing to the air outlet, so that the air outlet quantity is effectively improved.
The blades are provided with a plurality of rows of scale groups which are arranged at intervals up and down, scales on the adjacent upper and lower rows of scale groups are arranged in a staggered mode, and the arrangement mode and/or the shape of the plurality of scales on the blades are used for reducing pneumatic noise generated when the blades rotate.
The bionic fish scale axial flow fan blade also comprises a reinforced connecting frame connected with each blade, so that the mechanical strength of the axial flow fan blade is increased.
The pressure surface of each blade is provided with a connecting rib for connecting the reinforced connecting frame.
The hub, the blades and the reinforcing connecting frame form an integral axial flow fan blade through injection molding.
The beneficial effects of the utility model are as follows:
the suction surface of the blade is provided with a plurality of scales which are arranged at intervals, each scale is arranged on the suction surface of the blade in a protruding mode, a fluid diversion gap with gradually changed gaps is formed between two adjacent scales, the air output of the blade is effectively improved through the gradual fluid diversion gap, the contact area between the suction surface of the blade and the fluid is effectively reduced through the plurality of protruding scales arranged on the suction surface of the blade, the fluid resistance of the blade during running is reduced, the efficiency and the energy conversion efficiency of the blade are improved, a plurality of scales form reinforcing ribs on the blade, the running stability and the vibration resistance of the blade are improved, and the arrangement mode and/or the shape of the plurality of scales on the blade are/is used for reducing the pneumatic noise generated during the rotation of the blade.
Drawings
Fig. 1 is a schematic perspective view of an axial flow fan blade according to an embodiment of the present utility model.
FIG. 2 is a schematic view of a blade according to an embodiment of the present utility model.
Fig. 3 is a schematic perspective view of another azimuth structure of an axial flow fan blade according to an embodiment of the present utility model.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1-3, an axial flow fan blade of bionic fish scales comprises a blade 2 arranged along the outer side of a hub 1, a plurality of scales 3 arranged at intervals are arranged on the suction surface of the blade 2, each scale 3 is arranged on the suction surface of the blade 2 in a protruding mode, and a fluid diversion gap 4 with gradually changed gaps is formed between two adjacent scales 3.
The whole blade 2 is covered by the scales 3, a fish scale bionic structure is formed on the blade 2, the fluid resistance of the blade during operation is reduced, and the efficiency and the energy conversion efficiency of the blade are improved.
The air inlet and air outlet of the blade 2 are respectively communicated with the fluid diversion gap 4, and the fluid on the blade 2 forms a plurality of airflows flowing to the air outlet through the fluid diversion gaps 4 among the plurality of scales 3.
In the present embodiment, the scale 3 provided on the blade 2 is as follows:
the following two methods may be employed:
a. special materials are used: the surface of the blade 2 is coated or adhered with a material with fish scale textures, and the material has good wear resistance and wind erosion resistance.
B. Texture processing: by texturing the surface of the blade 2, a fish scale-like convex and concave structure is formed. The texture processing and manufacturing process can comprise numerical control machining, injection molding and other processes, wherein the numerical control machining is the processing of an injection mold. The inner cavity of the mould of the injection blade 2 is provided with fish scale textures.
The scales 3 are formed integrally with the blades 2 by injection molding.
The scales 3 are fixed on the blades 2 by adhesion.
The blade 2 is provided with a windward arc position 5 corresponding to the suction surface.
Each fluid diversion gap 4 is gradually increased along the fluid outlet of the blade 2.
The blades 2 are provided with a plurality of rows of scale groups which are arranged at intervals up and down, and scales 3 on the adjacent upper and lower rows of scale groups are arranged in a staggered manner. The shape and the size of the scales 3 are optimized aiming at specific application requirements, namely, aiming at the application scenes of the axial flow fan blades, such as the outdoor air conditioner, and the exhaust fan, the shape, the size and the arrangement mode of the scales 3 are optimally designed so as to improve the efficiency of the fan blades and reduce noise. Factors of optimal design include, but are not limited to, the height, width, spacing, arrangement angle, etc. of the scales 3, and the arrangement and shape of the scales 3 helps to reduce aerodynamic noise generated when the fan rotates.
The axial flow fan blade of the bionic fish scale also comprises a reinforced connecting frame 6 connected with each blade 2.
The pressure surface of each blade 2 is provided with a connecting rib 7 for connecting the reinforcing connecting frame 6.
The hub 1, the blades 2 and the reinforcing connection frame 6 form an integral axial flow fan blade through injection molding.
The foregoing is a preferred embodiment of the utility model showing and describing the general principles, features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an axial fan blade of bionical fish scale, includes blade (2) that set up along wheel hub (1) outside, its characterized in that: the suction surface of the blade (2) is provided with a plurality of scales (3) which are arranged at intervals, each scale (3) is arranged on the suction surface of the blade (2) in a protruding mode, and a fluid diversion gap (4) with gradually changed gaps is formed between two adjacent scales (3).
2. The bionic fish scale axial flow fan blade according to claim 1, wherein: the air inlet and the air outlet of the blade (2) are respectively communicated with the fluid diversion gap (4), and the fluid on the blade (2) forms a plurality of airflows flowing to the air outlet through the fluid diversion gaps (4) among the plurality of scales (3).
3. The bionic fish scale axial flow fan blade according to claim 1, wherein: the scales (3) and the blades (2) are formed into a whole through injection molding.
4. The bionic fish scale axial flow fan blade according to claim 1, wherein: the scales (3) are fixed on the blades (2) through adhesion.
5. The bionic fish scale axial flow fan blade according to claim 1, wherein: the blade (2) is provided with a windward arc position (5) corresponding to the suction surface.
6. The bionic fish scale axial flow fan blade according to claim 1, wherein: each fluid diversion gap (4) gradually increases along the fluid outlet of the blade (2).
7. The bionic fish scale axial flow fan blade according to claim 1, wherein: the blades (2) are provided with a plurality of rows of scale groups which are arranged at intervals up and down, and scales (3) on the adjacent upper and lower rows of scale groups are arranged in a staggered manner.
8. The bionic fish scale axial flow fan blade according to claim 1, wherein: also comprises a reinforced connecting frame (6) connected with each blade (2).
9. The bionic fish scale axial flow fan blade of claim 8, wherein: the pressure surface of each blade (2) is provided with a connecting rib (7) for connecting the reinforced connecting frame (6).
10. The bionic fish scale axial flow fan blade of claim 8, wherein: the hub (1), the blades (2) and the reinforced connecting frame (6) form an integral axial flow fan blade through injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321896081.9U CN220378547U (en) | 2023-07-18 | 2023-07-18 | Axial flow fan blade capable of simulating fish scales |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321896081.9U CN220378547U (en) | 2023-07-18 | 2023-07-18 | Axial flow fan blade capable of simulating fish scales |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220378547U true CN220378547U (en) | 2024-01-23 |
Family
ID=89571263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321896081.9U Active CN220378547U (en) | 2023-07-18 | 2023-07-18 | Axial flow fan blade capable of simulating fish scales |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220378547U (en) |
-
2023
- 2023-07-18 CN CN202321896081.9U patent/CN220378547U/en active Active
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