CN223136472U - A double-arc fan blade for enhancing wind speed and wind force - Google Patents
A double-arc fan blade for enhancing wind speed and wind forceInfo
- Publication number
- CN223136472U CN223136472U CN202422201009.0U CN202422201009U CN223136472U CN 223136472 U CN223136472 U CN 223136472U CN 202422201009 U CN202422201009 U CN 202422201009U CN 223136472 U CN223136472 U CN 223136472U
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- double
- arc
- blades
- blade
- fan blade
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Abstract
A double-arc fan blade for strengthening wind speed and wind force relates to improvement of a daily household appliance, in particular to improvement of a double-arc fan blade. The double-arc blades are arranged in a double-arc mode, each double-arc blade comprises two symmetrically arranged single blades, one ends of the single blades, which are far away from the middle connecting disc, are oppositely twisted and then connected with each other to form a whole, and the middle parts of the two single blades of the same double-arc blade are arranged to be bulges in opposite directions. The number of the double-arc blades is 3-7, the double-arc blades are uniformly arranged on the periphery of the middle connecting disc in an arc array, and the double-arc blades and the middle connecting disc are integrally arranged or fixedly inserted on the middle connecting disc. The fan blade has the advantages that the fan blade main body is bent greatly, so that air flow is smoother, the turbulence phenomenon of the air flow is reduced, and the wind force is more uniform and soft.
Description
Technical Field
The utility model relates to improvement of daily household appliances, in particular to improvement of double-arc fan blades.
Background
The electric fan is one of the most common household appliances in many families, and is popular because of the advantages of small energy consumption, convenient and quick use, adjustable air volume and the like.
Most of the current electric fans adopt circular blades, the circular blades can provide uniform air flow distribution and have lower manufacturing cost, but the fan blades have insufficient air speed and wind power, and meanwhile, the air flow generated by the traditional fan blades is relatively dispersed, so that the air flow with relatively fixed concentration and direction is difficult to generate.
The fan blade with complex shape has higher production cost, and the more complex the shape is, the more difficult the balance problem is to solve. Increasing the angle increases the air volume because the air flow is more efficiently directed. But too large an angle increases the motor load. The overlarge inclination angle can cause the increase of power consumption and noise of the fan, and meanwhile, the load of the motor can also be obviously increased, so that the service life is influenced.
Common for household fans are 3-5 blades, with a few high-end fans using 7 or more blades. The sirocco fan can provide more stable and soft air flow, reduce wind-cutting noise, but has higher power consumption. The combination of different blade shapes, angles and numbers can meet diversified use requirements, such as enhancing wind efficiency or reducing noise. With the progress of the process, the processing cost of fan blades with various complex shapes has gradually decreased, and the conventional fan blades have difficulty in meeting the demands of users and markets.
Disclosure of utility model
The utility model aims at overcoming the defects and shortcomings of the prior art, and provides a double-arc fan blade for strengthening wind speed and wind force. Strong airflow fluctuation in the traditional straight-line blade design can be avoided, more stable airflow is provided, and airflow wind speed distribution is more uniform, so that softer wind power output is brought.
In order to achieve the purpose, the double-arc blade type automobile engine adopts the following technical scheme that the double-arc blade type automobile engine comprises a middle connecting disc 1 and a plurality of double-arc blades 2, wherein the double-arc blades 2 are uniformly fixed on the outer side of the middle connecting disc 1, the double-arc blades 2 are arranged in a double-arc mode, each double-arc blade 2 comprises two symmetrically arranged single blades 21, one ends of the single blades 21, far away from the middle connecting disc 1, are oppositely twisted and then are connected with each other to form a whole, and the middle parts of the two single blades 21 of the same double-arc blade 2 are provided with bulges 22 in opposite directions.
The number of the double-arc blades 2 is 3-7, the double-arc blades 2 are uniformly arranged on the periphery of the middle connecting disc 1 in an arc array, and the double-arc blades 2 and the middle connecting disc 1 are integrally arranged or fixedly inserted into the middle connecting disc 1.
The middle part of the middle connecting disc 1 is provided with a connecting hole 11.
The middle connecting disc 1 is of a shell structure, the rear surface of the middle connecting disc 1 is of a cavity structure, connecting hole columns 12 are arranged in the cavity, and a plurality of reinforcing ribs 13 are uniformly arranged on the periphery of the connecting hole columns 12. The provision of the connecting hole posts 12 ensures the stability of the insertion of the entire fan blade.
The inner side ends of the two single blades 21 of each double-arc blade 2 are fixedly connected to the middle connecting disc 1 respectively, and an air flow channel 23 is formed between the two single blades 21.
The working principle of the utility model is that the design of the single blade 21 has large-amplitude bending, so that the air flow is smoother, the turbulence phenomenon of the air flow is reduced, the wind force is more uniform and soft, and the curvature can avoid strong air flow fluctuation in the traditional straight blade design and provide more stable air flow. Through the aerodynamic optimization, the air flow is more efficiently guided to the target direction, the energy loss is reduced, and meanwhile, the wind speed distribution is more uniform, so that the soft wind output is brought.
The blade design of the double-arc structure can contact more air than the traditional fan blade. The effective area of the contact of the blades and the air can be enlarged by the arc-shaped blades, so that more air can be pushed at the same rotating speed, and the wind output is improved. The double-arc structure can guide air to pass through the blades more orderly, and the formation of turbulent flow is reduced. Therefore, the mechanical energy can be more efficiently converted into air flow, and the wind power efficiency is improved. Especially, the design of two layers of arcs enables wind power to be more concentrated and not easy to disperse.
Meanwhile, each double-arc blade 2 is provided with an air flow channel 23, and air flow wind power generated by the air flow channels 23 can keep the balance of the single blade 21 in high-speed rotation, so that vibration and irregular air flow are reduced, and soft wind power experience is further improved.
By adopting the technical scheme, the wind turbine blade has the beneficial effects that the wind turbine blade not only can improve the wind quantity, but also can provide more comfortable and stable wind power experience, can avoid strong airflow fluctuation in the traditional straight blade design, provides more stable airflow, and also ensures that the airflow speed distribution is more uniform, thereby bringing softer wind power output.
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 elevational view of the present utility model;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the present utility model;
FIG. 4 is another angular view of FIG. 3;
fig. 5 is another angular view of fig. 4.
The reference numerals indicate the intermediate connection disc 1, the double-arc vane 2, the single vane 21, the protrusions 22, the connection holes 11, the connection hole columns 12, the reinforcing ribs 13, the single vane 21 and the air flow channel 23.
Detailed Description
Referring to fig. 1-5, the technical scheme adopted by the specific embodiment is that the double-arc blade type electric motor comprises a middle connecting disc 1 and a plurality of double-arc blades 2, wherein the double-arc blades 2 are uniformly fixed on the outer side of the middle connecting disc 1, the double-arc blades 2 are arranged in a double-arc mode, each double-arc blade 2 comprises two symmetrically arranged single blades 21, one ends of the single blades 21 far away from the middle connecting disc 1 are oppositely twisted and are connected with each other to form a whole, the middle parts of the two single blades 21 of the same double-arc blade 2 are provided with protrusions 22 in opposite directions, the number of the double-arc blades 2 is 5, the double-arc blades 2 are uniformly arranged on the periphery of the middle connecting disc 1 in an arc array mode, and the double-arc blades 2 and the middle connecting disc 1 are integrally arranged or fixedly spliced on the middle connecting disc 1. The middle part of the middle connecting disc 1 is provided with a connecting hole 11. The middle connecting disc 1 is of a shell structure, the rear surface of the middle connecting disc 1 is of a cavity structure, connecting hole columns 12 are arranged in the cavity, and a plurality of reinforcing ribs 13 are uniformly arranged on the periphery of the connecting hole columns 12. The provision of the connecting hole posts 12 ensures the stability of the insertion of the entire fan blade. The inner side ends of the two single blades 21 of each double-arc blade 2 are fixedly connected to the middle connecting disc 1 respectively, and an air flow channel 23 is formed between the two single blades 21.
The design of the single blade 21 of the present embodiment has a large degree of curvature, which makes the air flow smoother, reduces turbulence of the air flow, and makes the wind more uniform and softer, and such curvature can avoid strong air flow fluctuations in conventional straight blade designs, providing a more stable air flow. Through the aerodynamic optimization, the air flow is more efficiently guided to the target direction, the energy loss is reduced, and meanwhile, the wind speed distribution is more uniform, so that the soft wind output is brought.
The blade design of the double-arc structure can contact more air than the traditional fan blade. The effective area of the contact of the blades and the air can be enlarged by the arc-shaped blades, so that more air can be pushed at the same rotating speed, and the wind output is improved. The double-arc structure can guide air to pass through the blades more orderly, and the formation of turbulent flow is reduced. Therefore, the mechanical energy can be more efficiently converted into air flow, and the wind power efficiency is improved. Especially, the design of two layers of arcs enables wind power to be more concentrated and not easy to disperse.
Meanwhile, each double-arc blade 2 is provided with an air flow channel 23, and air flow wind power generated by the air flow channels 23 can keep the balance of the single blade 21 in high-speed rotation, so that vibration and irregular air flow are reduced, and soft wind power experience is further improved.
By adopting the technical scheme, the wind turbine blade has the beneficial effects that the wind turbine blade not only can improve the wind quantity, but also can provide more comfortable and stable wind power experience, can avoid strong airflow fluctuation in the traditional straight blade design, provides more stable airflow, and also ensures that the airflow speed distribution is more uniform, thereby bringing softer wind power output.
The foregoing is merely illustrative of the present utility model and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422201009.0U CN223136472U (en) | 2024-09-09 | 2024-09-09 | A double-arc fan blade for enhancing wind speed and wind force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422201009.0U CN223136472U (en) | 2024-09-09 | 2024-09-09 | A double-arc fan blade for enhancing wind speed and wind force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223136472U true CN223136472U (en) | 2025-07-22 |
Family
ID=96412950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422201009.0U Active CN223136472U (en) | 2024-09-09 | 2024-09-09 | A double-arc fan blade for enhancing wind speed and wind force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223136472U (en) |
-
2024
- 2024-09-09 CN CN202422201009.0U patent/CN223136472U/en active Active
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| Date | Code | Title | Description |
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