CN220248452U - Wind-gathering type fan blade and fan - Google Patents

Abstract

The utility model discloses a wind-gathering type fan blade and a fan, comprising: the fan comprises a fan cap and a plurality of fan blade components arranged on the fan cap in a surrounding mode, wherein each fan blade component comprises a first blade and a second blade, and the first blade and the second blade are arc-shaped; the concave surfaces of the first blade and the second blade are opposite, and the tail end of the first blade is connected with the tail end of the second blade, so that the first blade and the second blade are annular. The first blades and the second blades are arranged in an arc shape, so that the first blades and the second blades are respectively arranged on the fan cap to form a spiral shape, and vortex generated by the spiral blades is distributed on the blade surfaces instead of the tip, so that the vortex can be rapidly dissipated, and noise is reduced; the end connection of first blade and second blade makes first blade and second blade be annular, can effectively improve the effect of gathering wind, increases amount of wind and wind pressure, reaches the purpose of saving power through the design of flabellum for the user can reduce electric power cost when using the fan, also can export strong wind under the miniwatt state.

Description

Wind-gathering type fan blade and fan

Technical Field

The utility model relates to the technical field of fans, in particular to a wind-gathering type fan blade and a fan.

Background

Fans are an indispensable item in people's daily life, and are widely used in various scenes. Each fan blade of the existing fan is of a single-blade type design, such as sickle-shaped blades, trapezoidal blades and the like, and the blades have certain limitations in wind gathering capacity, are small in wind pressure, can only achieve the purpose of improving the wind pressure by changing the rotating speed of a motor, are large in noise and high in electric quantity consumption during use, and cannot meet the demands of people.

Disclosure of Invention

In view of the above, it is necessary to provide a fan blade and a fan to solve the problem that the wind pressure is small in the wind-gathering capability of the conventional fan blade design.

In order to achieve the above object, in a first aspect, the present utility model provides a fan blade of a wind-collecting type, comprising: the fan comprises a fan cap and a plurality of fan blade components arranged on the fan cap in a surrounding mode, wherein each fan blade component comprises a first blade and a second blade, and the first blade and the second blade are arc-shaped;

the concave surfaces of the first blade and the second blade are opposite, and the tail end of the first blade is connected with the tail end of the second blade, so that the first blade and the second blade are annular.

Further, the edge of the first blade at one side of the air outlet surface protrudes from the edge of the second blade, or the edge of the second blade at one side of the air outlet surface protrudes from the edge of the first blade; the blade edge of the first blade on one side of the air inlet surface is equal to the blade edge of the second blade in height.

Further, the widths of the first and second blades gradually decrease toward the tip direction.

Further, the fan blade assembly and the fan cap are integrally formed.

Further, the fan blade component and the fan cap are both made of plastic materials.

Further, the fan cap is provided with a mounting groove at one side of the air inlet surface.

Further, a connecting part is arranged in the mounting groove.

In a second aspect, the present utility model provides a fan, including any one of the fan blades of the first aspect.

Through the technical scheme, the utility model has the beneficial effects that:

1. according to the fan, the first blades and the second blades are arranged in the arc shape, so that the first blades and the second blades are respectively arranged on the fan cap to form a spiral shape, and vortex generated by the spiral blades is distributed on the leaf surface instead of the tip, so that the vortex can be rapidly dissipated, and noise is reduced;

2. through the end-to-end connection with first blade and second blade, make first blade and second blade be annular, can effectively improve the effect of gathering wind, increase amount of wind and wind pressure, reach the purpose of saving power through the design of flabellum for the user can reduce electric power cost when using the fan, also can export strong wind under the miniwatt state.

Drawings

FIG. 1 is a schematic view of an air outlet face structure according to a first embodiment;

FIG. 2 is a schematic view of the air inlet surface structure of the first embodiment;

fig. 3 is a schematic side perspective view of the first embodiment.

100. A fan cap; 110. a mounting groove; 111. a connection part; 200. a fan blade assembly; 210. a first blade; 220. and a second blade.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following describes a fan blade and a fan according to the present utility model in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

Referring to fig. 1-3, the present utility model provides a fan blade with a wind-gathering shape, comprising: the fan cap 100 and a plurality of fan blade assemblies 200 arranged on the fan cap 100 in a surrounding mode, wherein each fan blade assembly 200 comprises a first blade 210 and a second blade 220, and each first blade 210 and each second blade 220 are arc-shaped. The first and second blades 210 and 220 are provided in an arc shape such that the first and second blades 210 and 220 are respectively arranged in a spiral shape on the fan cap 100, and a vortex generated by the spiral blades is distributed on the blade surface instead of just the tip, so that the vortex can be rapidly dissipated, and noise can be reduced.

The concave surfaces of the first blade 210 and the second blade 220 are opposite, and the tail end of the first blade 210 is connected with the tail end of the second blade 220, so that the first blade 210 and the second blade 220 are annular, the wind gathering effect can be effectively achieved, and the wind quantity and the wind pressure can be increased. Preferably, the fan blade assembly 200 is provided with five groups, which may be specifically set according to need, but is not limited thereto. Specifically, one end of each of the first blade 210 and the second blade 220 is connected to the fan cap 100.

Referring to fig. 3, in the present embodiment, the edge of the first blade 210 at the air outlet side protrudes from the edge of the second blade 220, or the edge of the second blade 220 at the air outlet side protrudes from the edge of the first blade 210, so that the annular fan blade assembly 200 is curved at the air outlet side, and the curved design can generate a larger air flow pressure difference when the fan is running, thereby enhancing the wind output.

Further, referring to fig. 1, the widths of the first blade 210 and the second blade 220 gradually decrease toward the end, so as to increase the curvature of the air outlet surface of the annular fan assembly 200, further reduce the sliding loss of the air flow, and make the air flow better flow against the blade surface, thereby improving the efficiency of wind power transmission.

In this embodiment, the fan blade assembly 200 and the fan cap 100 are integrally formed, avoiding the inconvenience of requiring assembly.

In this embodiment, the fan blade assembly 200 and the fan cap 100 are both made of plastic, which is convenient to process and has low material cost.

Referring to fig. 2, in the present embodiment, a mounting groove 110 is provided on a side of the fan cap 100 located on the air inlet surface, so that the fan blades are conveniently mounted on the output shaft of the fan body.

Preferably, the connecting portion 111 is disposed in the mounting groove 110, and the connecting portion 111 can be connected with the output shaft of the fan body, and optionally, the connecting portion 111 can adopt a thread or a buckle, so that the fan blade can be stably mounted on the output shaft to rotate along with the output shaft.

Example two

The utility model provides a fan, which comprises any one of the fan gathering type fan blades in the first embodiment. Through the design of gathering the fan blade, this fan can effectively improve and gather wind effect, increases amount of wind and wind pressure, reaches the purpose of saving power through the design of fan blade for the user can reduce electric power cost when using the fan, also can export strong wind under the miniwatt state.

The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. A fan blade for collecting wind, comprising: the fan comprises a fan cap (100) and a plurality of fan blade assemblies (200) arranged on the fan cap in a surrounding mode, wherein each fan blade assembly (200) comprises a first blade (210) and a second blade (220), and the first blade (210) and the second blade (220) are arc-shaped;

the concave surfaces of the first blade (210) and the second blade (220) are opposite, and the tail end of the first blade (210) and the tail end of the second blade (220) are connected, so that the first blade (210) and the second blade (220) are annular.

2. The wind-collecting blade according to claim 1, wherein the edge of the first blade (210) on the wind-outlet side protrudes from the edge of the second blade (220), or the edge of the second blade (220) on the wind-outlet side protrudes from the edge of the first blade (210); the blade edge of the first blade (210) at one side of the air inlet surface is equal to the blade edge of the second blade (220).

3. The fan blade according to claim 2, wherein the widths of the first blade (210) and the second blade (220) gradually decrease in the tip direction.

4. The fan blade according to claim 1, wherein the fan blade assembly (200) and the fan cap (100) are integrally formed.

5. The fan blade according to claim 1, wherein the fan blade assembly (200) and the fan cap (100) are both made of plastic.

6. The fan blade according to claim 1, wherein the fan cap (100) is provided with a mounting groove (110) at one side of the air inlet surface.

7. The fan blade according to claim 6, wherein the mounting groove (110) is provided with a connecting portion (111).

8. A fan comprising a fan blade according to any one of claims 1 to 7.