Fan head and electric fan using same

By designing a fan head with spiral airflow characteristics, the problem of insufficient wind speed in the existing fan head is solved, and a stronger wind speed and a wider air supply range are achieved, while reducing noise.

CN223019028UActive Publication Date: 2025-06-24AIRMATE ELECTRICAL (SHEN ZHEN) CO LTD
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Patent Information

Application Number
CN202422115635.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-29
Publication Date
2025-06-24
Estimated Expiration
2034-08-29

AI Technical Summary

Technical Problem

The wind speed blowing from the head of the existing fan is small, resulting in a closer air supply distance and a smaller air supply area, which affects the user experience.

Method used

A fan head is designed, including a housing, a mesh, a double-layer fan blade and a driving component. The mesh cover consists of a first grille part and a second grille part. The double-layer fan blades include a wind ring, a first fan blade and a second fan blade. Through these structures, the airflow is blown out in a spiral shape along the cylindrical inner ring, and directional air supply is achieved through the second grille part.

Benefits of technology

Through the formation of spiral wind flow, the wind pressure is increased, the wind speed is greater and stronger, the wind delivery distance is extended, the directionality and uniformity of the air supply are improved, and the noise is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a fan head and an electric fan applying the same. The fan head comprises a shell, a mesh enclosure, double-layer fan blades and a driving part, the mesh enclosure comprises a first grid part, a second grid part and a cylindrical inner ring, the first grid part and the second grid part enable air blown out of the double-layer fan blades to be blown out of the mesh enclosure in different states, and the double-layer fan blades comprise an air ring, first fan blades and second fan blades. According to the fan head provided by the utility model, through the first grating part and the cylindrical inner ring on the mesh enclosure, air blown by the double-layer fan blades can be blown out in a spiral shape and forms spiral columnar air, so that the air pressure is increased, the air speed is higher and stronger, the distance of the blown air is farther, and the service life of the fan head is prolonged. By means of the second grating part, air blown out by the double-layer fan blades can be blown out of the net cover in the mode of being parallel to the fan blades, and therefore the air blown out by the double-layer fan blades has the good orientation performance and is soft and uniform, the air supply range is wider, and the air supply area is larger.
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Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a fan head and an electric fan applying the same. Background Art

[0002] At present, the wind speed of the wind blown by the fan head on the market is small, resulting in a short blowing distance and a small blowing area, which affects the user experience during use. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the disadvantages that the wind speed of the wind blown by the fan head is small, resulting in a short blowing distance and a small blowing area, which affects the user experience during use, and to provide a fan head.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a fan head, including a housing, a grille disposed at the front end of the housing, a double-layer fan blade rotatably connected in the grille, and a driving component for driving the double-layer fan blade to rotate in the grille;

[0005] The grille includes a first grille portion formed by enclosing a plurality of first ribs, a second grille portion formed by enclosing a plurality of second ribs, and a cylindrical inner ring disposed between the first grille portion and the second grille portion. The first grille portion and the second grille portion enable the wind blown by the double-layer fan blade to be blown out of the grille in different states. The double-layer fan blade includes a wind ring, a plurality of first fan blades disposed on the outer edge surface of the wind ring, and a plurality of second fan blades disposed on the inner wall of the wind ring.

[0006] Further, the first grille portion formed by enclosing a plurality of first ribs is spirally disposed on the inner wall of the inner ring.

[0007] Further, the second grille portion formed by enclosing a plurality of second ribs is radially disposed on the outer edge surface of the inner ring.

[0008] Further, the inclination angle of the second fan blade of the double-layer fan blade is greater than the inclination angle of the first fan blade.

[0009] Further, a plurality of first fan blades are equally spaced on the outer edge surface of the wind ring, and a plurality of second fan blades are equally spaced on the inner wall of the wind ring.

[0010] Further, a transmission column for driving connection with the driving component is also disposed between a plurality of the first fan blades.

[0011] Further, the driving component is in driving connection with the transmission column through a transmission shaft, and a transmission portion is disposed on the transmission shaft of the driving component.

[0012] Further, a transmission groove is provided on the transmission column, and the transmission part of the transmission shaft penetrates into the transmission groove, so that the driving component is in transmission connection with the double-layer fan blades.

[0013] Further, the fan head further includes a blade platform for fixing the fan blades on the transmission shaft, and the blade platform is threadedly connected to the transmission shaft.

[0014] The present utility model also provides an electric fan, including the above-mentioned fan head.

[0015] The beneficial effects of the fan head and the electric fan applying the same provided by the present utility model are as follows: Through the first grid part and the cylindrical inner ring on the mesh cover, the wind blown by the double-layer fan blades can be blown out in a spiral shape along the direction of the cylindrical inner ring to form a spiral columnar wind, thereby increasing the wind pressure, making the wind speed greater and stronger, and further making the blown wind reach a farther distance. Through the second grid part, the wind blown by the double-layer fan blades can be blown out of the mesh cover parallel to the fan blades, so that the wind blown by the double-layer fan blades has better directivity, is gentle and uniform, and has a wider air supply range and a larger air supply area. In addition, through the second fan blade of the double-layer fan blades, the wind can be blown out in a spiral shape along a certain direction. With the agitation of the fan blades, a spiral columnar wind can be finally formed, so that the wind blown by the double-layer fan blades is at a farther distance and has better directivity. In addition, through the first fan blade, while the air supply is gentle and uniform, the air supply range is wider and the air supply area is larger, the noise can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded schematic view of the fan head provided by the present utility model;

[0017] Figure 2 is a structural schematic view of the mesh cover in the fan head provided by the present utility model;

[0018] Figure 3 is a structural schematic view of the double-layer fan blades in the fan head provided by the present utility model;

[0019] Figure 4 is a structural schematic view of the housing in the fan head provided by the present utility model;

[0020] Figure 5 is an assembly schematic view of the fan head provided by the present utility model.

[0021] In the figure:

[0022] 100 - fan head,

[0023] 10 - housing, 20 - mesh cover, 21 - first grid part, 211 - first rib, 22 - second grid part,

[0024] 221 - Second rib, 23 - Inner ring, 30 - Double - layer fan blade, 31 - Wind ring, 32 - First fan blade,

[0025] 33 - Second fan blade, 34 - Transmission column, 341 - Transmission groove, 40 - Driving component, 41 - Transmission shaft,

[0026] 411 - Transmission part, 50 - Blade platform. Specific embodiments

[0027] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] See Figures 1-5 , a fan head 100 provided by the present utility model and an electric fan using the same. The fan head 100 includes a housing 10, a grille 20 disposed at the front end of the housing 10, a double - layer fan blade 30 rotatably connected within the grille 20, and a driving component 40 for driving the double - layer fan blade 30 to rotate within the grille 20; the grille 20 includes a first grille portion 21 formed by enclosing a plurality of first ribs 211, a second grille portion 22 formed by enclosing a plurality of second ribs 221, and a cylindrical inner ring 23 disposed between the first grille portion 21 and the second grille portion 22. The first grille portion 21 and the second grille portion 22 cause the wind blown by the double - layer fan blade 30 to be blown out of the grille 20 in different states. The double - layer fan blade 30 includes a wind ring 31, a plurality of first fan blades 32 disposed on the outer edge surface of the wind ring 31, and a plurality of second fan blades 33 disposed on the inner wall of the wind ring 31. The fan head 100 provided by the present utility model and the electric fan using the same can make the wind blown by the double - layer fan blade 30 blow out in a spiral shape along the direction of the cylindrical inner ring 23 and form a spiral - shaped columnar wind through the first grille portion 21 and the cylindrical inner ring 23 on the grille 20, thereby increasing the wind pressure, making the wind speed greater and stronger, and further making the blown wind reach a farther distance. Through the second grille portion 22, the wind blown by the double - layer fan blade 30 can be blown out of the grille 20 parallel to the fan blades, so that the wind blown by the double - layer fan blade 30 has better directivity, is gentle and uniform, and has a wider air supply range and a larger air supply area; in addition, through the second fan blade 33 of the double - layer fan blade 30, the wind can be blown out in a spiral shape along a certain direction, and finally a spiral - shaped columnar wind can be formed as the fan blades stir, so that the wind blown by the double - layer fan blade 30 reaches a farther distance and has better directivity. In addition, through the first fan blade 32, while the air supply is gentle and uniform, and the air supply range is wider and the air supply area is larger, the noise can be reduced.

[0029] As Figure 1 and Figure 2As shown, in the embodiments provided by the present utility model, the first grid portion 21 formed by enclosing a plurality of first rib strips 211 is spirally arranged on the inner wall of the inner ring 23. A wind channel is formed by the cylindrical inner ring 23, and the spiral first grid portion 21 can make the wind blown out by the double-layer fan blades 30 blow out in a spiral shape along the direction set by the inner ring 23 and form a spiral columnar wind, thereby increasing the wind pressure, making the wind speed greater and stronger, and further making the blown wind have a longer distance, improving the user experience during use. In addition, the second grid portion 22 formed by enclosing a plurality of second rib strips 221 is radially arranged on the outer edge surface of the inner ring 23. The radially arranged second grid portion 22 does not restrict the wind direction of the wind blown out by the double-layer fan blades 30, making the wind blown out by the double-layer fan blades 30 parallel to the fan blade and blow out of the blowing net cover 20, so that the wind blown out by the double-layer fan blades 30 has good directional performance, is gentle and uniform, and has a wider air supply range and a larger air supply area.

[0030] As Figure 1 and Figure 3 shown, the inclination angle of the second fan blade 33 of the double-layer fan blade 30 is greater than the inclination angle of the first fan blade 32. By setting the inclination angle of the second fan blade 33 of the double-layer fan blade 30 to be greater than the inclination angle of the first fan blade 32, the second fan blade 33 is a turbine fan blade, and the first fan blade 32 is an ordinary fan blade. In addition, a transmission column 34 for driving connection with the driving component 40 is arranged between the plurality of first fan blades 32. Since the blade wind cutting angle of the second fan blade 33 is large, the air volume blown out by the second fan blade 33 is correspondingly increased, and through the re-hurricane wall formed by the wind ring 31, the air volume of the wind blown out by the second fan blade 33 is more concentrated, further increasing the wind pressure, making the wind speed greater and stronger, and further making the blown wind have a longer distance, improving the user experience during use.

[0031] As Figure 1 and Figure 3As shown in the figure, a plurality of first fan blades 32 are arranged at equal intervals on the outer edge surface of the wind ring 31, and a plurality of second fan blades 33 are arranged at equal intervals on the inner wall of the wind ring 31. In the embodiment provided by the present utility model, since the inclination angle of the second fan blade 33 is relatively gentle, the wind-cutting area of the blade of the second fan blade 33 is large, but the wind-cutting angle of the blade is relatively gentle, and there is no constraint on the periphery. Therefore, the air outlet area of the second fan blade 33 is increased, and further, the wind speed of the wind blown by the second fan blade 33 is relatively gentle. Further, while the air supply is gentle and uniform, the air supply range is wider, the air supply area is large, the noise is reduced, and the user experience during use is improved. By arranging a plurality of first fan blades 32 at equal intervals on the outer edge surface of the wind ring 31 and arranging a plurality of second fan blades 33 at equal intervals on the inner wall of the wind ring 31, the uniformity of the distribution of the first fan blades 32 and the second fan blades 33 on the outer edge surface and the inner wall of the wind ring 31 can be effectively ensured. Thus, while further ensuring that the air supply is gentle and uniform, the air supply range is wider, the air supply area is large, and the noise is reduced through the first fan blades 32, and the wind speed is increased through the second fan blades 33, and the stability of the air supply distance is improved.

[0032] As Figure 3 and Figure 4 shown, the driving component 40 is in transmission connection with the transmission column 34 through the transmission shaft 41, and a transmission part 411 is arranged on the transmission shaft 41 of the driving component 40. A transmission groove 341 is arranged on the transmission column 34, and the transmission part 411 of the transmission shaft 41 penetrates into the transmission groove 341, so that the driving component 40 is in transmission connection with the double-layer fan blades 30. In the embodiment provided by the present utility model, the driving component 40 is a driving motor. By passing the driving shaft of the driving motor through the transmission groove 341 of the transmission column 34 of the double-layer fan blades 30, the stability of the transmission connection between the driving motor and the double-layer fan blades 30 can be effectively improved, thereby ensuring the stability of the fan head 100.

[0033] As Figure 1 and Figure 5 shown, the fan head 100 further includes a blade platform 50 for fixing the fan blades on the transmission shaft 41, and the blade platform 50 is threadedly connected to the transmission shaft 41. After the transmission part 411 of the transmission shaft 41 of the driving motor penetrates into the transmission groove 341 of the transmission column of the double-layer fan blades 30 to make the driving component 40 in transmission connection with the double-layer fan blades 30, by using the blade platform 50 to be threadedly connected and fixed to the transmission shaft 41 of the driving motor, the stability of the transmission connection between the double-layer fan blades 30 and the driving motor can be further improved, thereby further ensuring the stability of the fan head 100 and the stability of the user using the fan head 100. The present utility model also provides an electric fan, including the above-mentioned fan head 100.

[0034] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A fan head, characterized in that: It comprises a housing (10), a mesh cover (20) arranged at the front end of the housing (10), a double-layered fan blade (30) rotatably connected to the mesh cover (20), and a driving component (40) for driving the double-layered fan blade (30) to rotate in the mesh cover (20); The mesh cover (20) comprises a first grille portion (21) formed by a plurality of first ribs (211), a second grille portion (22) formed by a plurality of second ribs (221), and a cylindrical inner ring (23) arranged between the first grille portion (21) and the second grille portion (22); the first grille portion (21) and the second grille portion (22) enable wind blown out of the double-layered fan blades (30) to be blown out of the mesh cover (20) in different states; the double-layered fan blades (30) comprise a wind circle (31), a plurality of first fan blades (32) arranged on the outer edge surface of the wind circle (31), and a plurality of second fan blades (33) arranged on the inner wall of the wind circle (31).

2. A fan head according to claim 1, characterized in that: A first grille portion (21) formed by enclosing a plurality of the first ribs (211) is arranged in a spiral shape on the inner wall of the inner ring (23).

3. A fan head according to claim 2, characterized in that: A second grille portion (22) formed by enclosing a plurality of the second ribs (221) is radially arranged on the outer edge surface of the inner ring (23).

4. A fan head according to claim 1, characterized in that: The inclination angle of the second blade (33) of the double-layer blade (30) is greater than the inclination angle of the first blade (32).

5. A fan head according to claim 4, characterized in that: A plurality of first blades (32) are arranged at equal intervals on the outer edge surface of the wind circle (31), and a plurality of second blades (33) are arranged at equal intervals on the inner wall of the wind circle (31).

6. A fan head according to claim 5, characterized in that: A transmission column (34) for transmission connection with the driving component (40) is also provided between the plurality of first blades (32).

7. A fan head according to claim 6, characterized in that: The driving component (40) is connected to the driving column (34) via a driving shaft (41), and a driving part (411) is provided on the driving shaft (41) of the driving component (40).

8. A fan head according to claim 7, characterized in that: The transmission column (34) is provided with a transmission groove (341), and the transmission part (411) of the transmission shaft (41) penetrates into the transmission groove (341), so that the driving component (40) is connected to the double-layer fan blade (30) in a transmission manner.

9. A fan head according to claim 8, characterized in that: The fan head also includes a blade platform (50) for fixing the double-layer blades (30) on the transmission shaft (41), and the blade platform (50) is threadedly connected to the transmission shaft (41).

10. An electric fan, characterized in that: Comprising a fan head as described in any one of claims 1-9.