CN217976651U - Fan component and fan - Google Patents

Abstract

The utility model provides a fan assembly and fan, including fan casing, motor element and fan blade assembly, the fan casing is located fan assembly's front end, and fan blade assembly is including the rotor that has the annular side and connect a plurality of flabellums on rotor annular side, and motor element includes motor and rotation axis, and the both ends of rotation axis are connected with rotor and motor respectively, and the flabellum includes preceding terminal surface and rear end face, is equipped with the depressed area in the front on the terminal surface. The utility model discloses after the preceding terminal surface of flabellum sets up the arc concave surface, when the fan is rotatory for the air current that the fan produced can blow off with the heliciform, is convenient for gather the air current, thereby increases wind-force.

Description

Fan component and fan

Technical Field

The utility model belongs to the technical field of the fan and specifically relates to a fan assembly and fan.

Background

Currently, an electric fan mainly includes a fan housing, a motor assembly and a fan assembly, wherein the fan assembly includes a rotor and a plurality of fan blades disposed thereon. However, since the shape of the conventional fan blade is substantially a flat plate-like structure, the blown wind is transmitted only in a straight direction, and the wind force is small and is dispersed, so that the wind cannot be concentrated.

Disclosure of Invention

To the weak point that exists in the above-mentioned problem, the utility model provides a make the air current that the fan produced blow off with the heliciform, be convenient for gather the air current to increase a fan unit spare and fan of wind-force.

In order to achieve the above object, the utility model provides a fan assembly, including fan casing, motor element and flabellum subassembly, the fan casing is located fan assembly's front end, and the flabellum subassembly is including the rotor that has the annular side and connect a plurality of flabellums on rotor annular side, and motor element includes motor and rotation axis, and the both ends of rotation axis are connected with rotor and motor respectively, and the flabellum includes preceding terminal surface and rear end face, is equipped with recessed area on the terminal surface in the front.

In an embodiment, the concave area is an arc-shaped concave surface disposed on the front end surface.

In an embodiment of the fan assembly, the fan blades have a spiral structure.

In the above fan assembly, the shape of the fan cover is a planar structure.

In the above fan assembly, the fan cover is in a cambered surface structure.

In the above fan assembly, the fan cover is provided with a grid formed by a plurality of through holes.

In the above fan assembly, the grid is formed by the through holes with the same or different shapes and apertures.

The utility model also provides a fan, including the above-mentioned arbitrary fan unit spare.

Compared with the prior art, the utility model has one of following advantage:

after the front end surfaces of the fan blades are provided with the concave areas, when the fan rotates, airflow generated by the fan can be blown out in a spiral shape, the airflow is convenient to gather, and therefore wind power is increased.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a perspective view of the fan blade assembly of FIG. 1;

fig. 3 is a cross-sectional view of fig. 2.

The main reference numbers are as follows:

1-a fan cover; 2-a motor; 3-a rotation axis; 4-a rotor; 5-fan blades; 51-a front end face; 511-arc concave; 52-rear end face

Detailed Description

As shown in fig. 1 to fig. 3, the present invention provides a fan assembly, which includes a fan housing 1, a motor assembly and a fan blade assembly. The fan housing 1 is located at the front end of a fan assembly, and the fan blade assembly includes a rotor 4 having an annular side surface, and a plurality of fan blades 5 attached to the annular side surface of the rotor 4. In the present embodiment, the number of the fan blades is three, wherein each fan blade has a substantially helical structure, and the three fan blades 5 are radially arranged on the outer wall surface of the rotor 4 with the axis of the rotor 4 as the center.

The fan blade 5 includes a front end surface 51 and a rear end surface 52, and a recessed region is provided on the front end surface 51. In the present embodiment, the recessed region is an arc-shaped concave surface 511 provided on the front end surface 51.

The fan cover 1 is made of a rigid material and has a planar structure or a cambered surface structure.

The fan housing 1 is close to the rotor 4 and located at the other end of the rotor 4 in the axial direction, and a spacing distance is provided between the fan housing 1 and the rotor 4.

The fan housing 1 has a grid of a plurality of through holes. Wherein, the grid is composed of through holes with the same or different shapes and apertures.

The air flow pushed by each fan blade 5 can be rectified through the grids, so that the turbulent flow in the air flow pushed by each fan blade 5 is reduced, and when the air flow pushed by each fan blade 5 passes through the fan cover, the blowing range of the air flow can be increased.

In the embodiment, the fan cover is in a roughly arc-shaped structure, and the fan cover with the shape can have a wider blowing range.

The motor assembly comprises a motor 2 and a rotating shaft 3, wherein the front end of the rotating shaft 3 is connected with a rotor 4, and the tail end of the rotating shaft 3 is connected with the motor 2.

In the present embodiment, the motor 2 is an ac electric motor with a rotational speed of about 25 hz.

After the front end surfaces of the fan blades are provided with the concave areas, when the fan rotates, airflow generated by the fan can be blown out in a spiral shape, the airflow is convenient to gather, and therefore wind power is increased. When the fan assembly in the shape pushes the air flow, the air flow has larger kinetic energy, and the purpose of energy conservation is achieved.

The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting of the invention. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (8)

1. The utility model provides a fan assembly, includes fan casing, motor element and flabellum subassembly, and the fan casing is located fan assembly's front end, and flabellum subassembly is including the rotor that has the annular side and connect a plurality of flabellums on rotor annular side, and motor element includes motor and rotation axis, and the both ends of rotation axis are connected with rotor and motor respectively, and its characterized in that, flabellum include preceding terminal surface and rear end face, are equipped with the depressed area on the terminal surface in the front.

2. The fan assembly of claim 1 wherein said recessed area is an arcuate concave surface disposed on said front face.

3. A fan assembly as claimed in claim 1 or claim 2, wherein the fan blades are of helical configuration.

4. A fan assembly in accordance with claim 3 wherein said fan housing is shaped as a planar structure.

5. The fan assembly of claim 4 wherein said fan shroud is configured as a cambered surface.

6. A fan assembly as claimed in claim 4 or 5, wherein the fan housing is provided with a grid of apertures.

7. A fan assembly as claimed in claim 6, wherein the mesh is formed by the through holes having the same or different shapes and diameters.

8. A fan comprising a fan assembly as claimed in any one of claims 1 to 7.

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