CN219654953U - Fan blade and blowing device - Google Patents
Fan blade and blowing device Download PDFInfo
- Publication number
- CN219654953U CN219654953U CN202320550408.0U CN202320550408U CN219654953U CN 219654953 U CN219654953 U CN 219654953U CN 202320550408 U CN202320550408 U CN 202320550408U CN 219654953 U CN219654953 U CN 219654953U
- Authority
- CN
- China
- Prior art keywords
- blade
- fan blade
- hub
- degrees
- axial direction
- 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.)
- Active
Links
- 238000007664 blowing Methods 0.000 title claims abstract description 11
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A fan blade and a blowing device relate to the technical field of fans. The fan blade includes: a hub having a cylindrical shape, and a plurality of blades uniformly fixed on the circumferential surface of the hub at intervals; the whole blade is in a trapezoid sheet shape, and the upper surface of the blade is an arc surface; the root of the blade forms an included angle of 50-60 degrees with the axial direction of the hub, the head of the blade forms an included angle of 60-70 degrees with the axial direction of the hub, and the root of the blade and the head form 5-10 degrees of stagger. The blowing device includes: the high-speed motor is arranged in the shell, and the fan blade is arranged on an output rotating shaft of the high-speed motor. By adopting the technical scheme, the noise generated when the fan blade is used can be reduced as much as possible while the blowing efficiency of the fan blade is improved, so that the overall performance of the fan blade is more balanced.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a fan blade and a blowing device.
Background
With the improvement of life quality of people, there is also a higher demand for fans, which mainly includes the following aspects:
1. noise is reduced, and when the fan is used, the noise not only seriously affects the feeling of a user, but also has a certain influence on the surrounding environment.
2. The air output is improved, which is an important index for measuring the performance of the fan, and the efficiency of using the fan by a user can be directly improved by increasing the air output.
Disclosure of Invention
The utility model aims at overcoming the defects and shortcomings of the prior art, and provides a fan blade and a blowing device, which have the advantages of improving blowing efficiency and reducing noise.
In order to achieve the above object, a first aspect of the present utility model adopts a technical scheme that a fan blade includes:
a hub having a cylindrical shape, and a plurality of blades uniformly fixed on the circumferential surface of the hub at intervals; the whole blade is in a trapezoid sheet shape, and the upper surface of the blade is an arc surface;
the root of the blade forms an included angle of 50-60 degrees with the axial direction of the hub, the head of the blade forms an included angle of 60-70 degrees with the axial direction of the hub, and the root of the blade and the head form 5-10 degrees of stagger.
The utility model further provides that the root of the blade forms an included angle of 55-60 degrees with the axial direction of the hub, and the head of the blade forms an included angle of 62-67 degrees with the axial direction of the hub.
The utility model further provides that the root of the blade forms an included angle of 57 degrees with the axial direction of the hub, and the head of the blade forms an included angle of 65 degrees with the axial direction of the hub.
The utility model further provides that the number of the blades is an odd number.
The utility model further provides that the number of the blades is 13.
The utility model further provides that the diameter of the fan blade is 25-30 mm.
The utility model further provides that the diameter of the fan blade is 25-30 mm.
The utility model further provides that the thickness of the blade is 0.5-0.8 mm.
The second aspect of the present utility model adopts a technical scheme that a blowing device includes:
the high-speed motor is arranged in the shell, and the fan blade is arranged on the output rotating shaft of the high-speed motor.
The utility model further provides that the fan blade is positioned at the upper end part in the shell, and the fan blade is embedded in the outer wall of the shell.
After the technical scheme is adopted, the utility model has the beneficial effects that:
the axial angle between the root of the blade and the hub of the blade is larger, the wind scraping efficiency is higher when the blade rotates, the wind output is greatly increased, and meanwhile, the noise is reduced when the blade rotates due to the fact that the root of the blade and the head of the blade are staggered by 5-10 degrees, so that the overall performance of the blade is balanced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of a fan blade according to the present utility model;
FIG. 2 is a schematic view of another angle of the fan blade according to the present utility model;
fig. 3 is a schematic structural view of a blower according to the present utility model;
fig. 4 is a schematic exploded view of the structure of the blower of the present utility model;
reference numerals illustrate: 1. a fan blade; 2. a housing; 3. a high-speed motor; 10. a hub; 20. and (3) a blade.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and those skilled in the art can make modifications to the present embodiment which do not contribute to the utility model as required after reading the present specification, but are protected by the patent laws within the scope of the appended claims.
Embodiment one: the present embodiment relates to a fan blade 1, as shown in fig. 1-2, comprising: hub 10 and a plurality of blades 20.
The hub 10 is cylindrical and is arranged in the middle of the fan blade 1 and is used for installing the fan blade 1 and fixing the fan blade 20; the blades 20 are fixed on the circumferential surface of the hub 10, the distance between each blade 20 is equal, and the number of the blades 20 is 13, so that the whole center of the fan blade 1 is symmetrical, the stability of the fan blade during operation is ensured, and unnecessary noise generated by shaking of the fan blade is avoided. Of course, in other embodiments, the number of blades 20 is 7, 9, 11, 15, etc.
The blade 20 is a part of the blade 1 generating wind, the shape of the blade determines the wind output of the blade 1 to a great extent, in the embodiment, the upper surface and the lower surface of the blade 20 are all cambered surfaces, the whole blade 20 is in a trapezoid sheet shape concave towards the wind output direction, the root of the blade 20 forms an included angle of 57 degrees with the axial direction of the hub 10, the head of the blade 20 forms an included angle of 65 degrees with the axial direction of the hub 10, and the root of the blade 20 forms 8 degrees of stagger with the head. The axial angle between the root of the blade and the hub of the blade is larger, the wind scraping efficiency is higher when the blade rotates, the wind output is greatly increased, and meanwhile, the 8-degree staggering between the root of the blade and the head part reduces the noise when the blade rotates, so that the overall performance of the blade is balanced.
Of course, in other embodiments, and the blade 20 angle may also be the data shown in the following table.
In this embodiment, the thickness of the blade 20 is 0.5-0.8 mm, the diameter of the fan blade 1 is 27 mm, and the fan blade has good adaptability and is suitable for most blowers. In other embodiments, the diameter of the fan blade 1 is 25 mm, 26 mm, 28 mm, 29 mm, 30 mm.
Embodiment two: the present embodiment relates to a fan blade 1, as shown in fig. 3-4, comprising: a housing 2, a high-speed motor 3, and a fan blade 1 in the first embodiment.
The shell 2 comprises an outer shell and an inner shell, the outer shell and the inner shell are connected through a plurality of air duct plates, an air duct is formed in the middle of the outer shell and the inner shell, the inner shell is provided with a high-speed motor 3, and the fan blade 1 is connected to an output shaft of the motor.
In this embodiment, the fan blade 1 is located at the upper end of the casing 2, and the fan blade 20 is embedded in the outer wall of the casing 2, so that the air outlet enters the air duct, and the air outlet is more concentrated.
The above description is only for the purpose of illustrating the technical solution of the present utility model and not for the purpose of limiting the same, and other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (10)
1. A fan blade, characterized by comprising: a hub (10) having a cylindrical shape, and a plurality of blades (20) fixed on the circumferential surface of the hub (10) at uniform intervals; the whole blade (20) is in a trapezoid sheet shape, and the upper surface of the blade is an arc surface;
the root of the blade (20) forms an included angle of 50-60 degrees with the axial direction of the hub (10), the head of the blade (20) forms an included angle of 60-70 degrees with the axial direction of the hub (10), and the root of the blade (20) and the head form 5-10 degrees of stagger.
2. The fan blade according to claim 1, wherein the root of the blade (20) forms an angle of 55-60 degrees with the axial direction of the hub (10), and the head of the blade (20) forms an angle of 62-67 degrees with the axial direction of the hub (10).
3. The blade according to claim 2, wherein the root of the blade (20) forms an angle of 57 degrees with the axial direction of the hub (10), and the head of the blade (20) forms an angle of 65 degrees with the axial direction of the hub (10).
4. A fan blade according to claim 1, wherein the number of blades (20) is an odd number.
5. The fan blade according to claim 4, wherein the number of blades (20) is 13.
6. The fan blade of claim 1, wherein the diameter of the fan blade is 25-30 mm.
7. The fan blade of claim 6, wherein the diameter of the fan blade is 27 millimeters.
8. The blade according to claim 1, wherein the thickness of the blade (20) is 0.5-0.8 mm.
9. A blowing apparatus, characterized by comprising: a shell (2), wherein a high-speed motor (3) is arranged in the shell (2), and a fan blade (1) as claimed in any one of claims 1-8 is arranged on an output rotating shaft of the high-speed motor (3).
10. A blowing device according to claim 9, characterized in that said fan blade (1) is located at an upper end in said housing (2), said blade (20) being embedded in an outer wall of said housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320550408.0U CN219654953U (en) | 2023-03-16 | 2023-03-16 | Fan blade and blowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320550408.0U CN219654953U (en) | 2023-03-16 | 2023-03-16 | Fan blade and blowing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219654953U true CN219654953U (en) | 2023-09-08 |
Family
ID=87861971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320550408.0U Active CN219654953U (en) | 2023-03-16 | 2023-03-16 | Fan blade and blowing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219654953U (en) |
-
2023
- 2023-03-16 CN CN202320550408.0U patent/CN219654953U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211397958U (en) | Air supply device | |
| CN219654953U (en) | Fan blade and blowing device | |
| CN211666920U (en) | Air supply device and dust collector | |
| CN103195749A (en) | Centrifugal impeller, centrifugal fan and inner machine of air conditioner | |
| CN215860965U (en) | Fan with dustproof structure | |
| CN113074137B (en) | Air supply device and dust collector | |
| TW202309395A (en) | Fan and cleaning device | |
| CN204827981U (en) | High -efficient mixed flow fan | |
| CN112879323B (en) | Air supply device | |
| CN113074139B (en) | Diffusion device, fan and dust collector | |
| CN204790807U (en) | Hydrocone type CPU heat abstractor | |
| CN207410149U (en) | Wheel hub motor and its end cap | |
| CN206694278U (en) | A kind of centrifugal blower | |
| CN203717439U (en) | Centrifugal wheel with blades distributed in different heights | |
| CN215835265U (en) | Air cooling structure of motor | |
| CN219299625U (en) | Low-noise high-speed fan | |
| US11824404B2 (en) | Motor with outer rotor having exhaust plates | |
| CN220539889U (en) | Fan structure and electronic equipment | |
| CN218648694U (en) | Energy-saving efficient double-vortex fan duct micromotor | |
| KR102672554B1 (en) | A wind converter for urban wind power generation system | |
| CN212563698U (en) | Low-noise centrifugal fan structure | |
| CN210599557U (en) | Centrifugal fan and range hood | |
| TWM581150U (en) | Fan blade structure | |
| CN213744059U (en) | Air duct assembly of fan | |
| CN219953733U (en) | Integrated wind wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |