CN220302406U

CN220302406U - Blade with double cutting surfaces

Info

Publication number: CN220302406U
Application number: CN202321895141.5U
Authority: CN
Inventors: 周祖宏; 洪维海
Original assignee: Zhongshan Fengmei Lighting Technology Co ltd
Current assignee: Zhongshan Fengmei Lighting Technology Co ltd
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2024-01-05
Anticipated expiration: 2033-07-18

Abstract

The utility model discloses a fan blade with double wind cutting surfaces, which comprises a connecting part, wherein two wind cutting blades are arranged on the connecting part, and an air circulation cavity is arranged between the two wind cutting blades. The utility model combines two blade to form a blade, which makes a single blade have two blade faces, so as to realize that the number of blade faces is twice that of the blade under the condition of unchanged blade number, thereby reducing dead weight of the whole ceiling fan, reducing production and transportation cost and reducing output power required by the motor.

Description

Blade with double cutting surfaces

Technical Field

The utility model relates to a fan blade with double cutting wind surfaces.

Background

Ceiling fans are one of the most common household appliances and are widely applied to various scenes such as factories, schools, families, public places and the like.

The fan blade in the existing ceiling fan is in a single-piece shape, and the fan blade only has one wind cutting surface. For example, chinese patent publication No. CN213928879U discloses a ceiling fan blade and a ceiling fan.

Based on the above, in the prior art, the ceiling fan is provided with a plurality of blades, and the ceiling fan has a plurality of cutting surfaces. The increase of the wind cutting surface can strengthen the air supply quantity of the ceiling fan, but along with the increase of the number of the fan blades, the manufacturing cost and the transportation cost can also be increased, and meanwhile, the power required by a motor and the weight of the whole ceiling fan can be increased.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a fan blade with double cutting planes.

The fan blade with the double wind cutting surfaces comprises a connecting part, wherein two wind cutting blades are arranged on the connecting part, and an air circulation cavity is arranged between the two wind cutting blades.

Preferably, a joint part is arranged at one end of the wind cutting blade far away from the connecting part, and the joint parts of the two wind cutting blades are mutually connected.

Preferably, the wind cutting blades are obliquely arranged, and the included angle between the wind cutting blades and a plane parallel to the ground is A;

a is 5-75 degrees.

Preferably, the air circulation cavity is provided in an elliptical shape.

Preferably, the wind cutting blades are arranged in an arc shape.

Preferably, the connecting portion is hollow to form a cavity with an opening.

Preferably, the connecting portion is provided with a mounting hole.

Preferably, the end surface of the connecting part facing away from the wind cutting blade is an arc-shaped surface.

Preferably, the inside of the blade is hollow.

Compared with the prior art, the air conditioner has the advantages that the air conditioner is simple and reasonable in structure, single fan blades have double air cutting surfaces, the weight is reduced, and the manufacturing cost is reduced at the same time when the air quantity is ensured. The utility model combines two blade to form a blade, which makes a single blade have two blade faces, so as to realize that the number of blade faces is twice that of the blade under the condition of unchanged blade number, thereby reducing dead weight of the whole ceiling fan, reducing production and transportation cost and reducing output power required by the motor.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a second perspective view of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic perspective view of a three-blade assembly;

FIG. 5 is a second perspective view of a three-blade assembly.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Referring to fig. 1-5, a fan blade 100 with double cutting surfaces includes a connection portion 10, two cutting blades 20 are disposed on the connection portion 10, and an air circulation cavity 30 is disposed between the two cutting blades 20. The utility model combines two blade cutting blades to form the fan blade 100, so that a single fan blade has two blade cutting surfaces, the number of the blade cutting surfaces is twice as large as that of the fan blades under the condition of unchanged blade number, the self weight of the whole ceiling fan is reduced while the air supply quantity is ensured, the production and transportation cost is reduced, and the output power required by a motor is reduced.

Referring to fig. 1 and 2, a coupling portion 210 is disposed at an end of the blade 20 away from the connecting portion 10, and the coupling portions 210 of the two blades 20 are connected to each other, which can effectively enhance the overall strength, so as to ensure the stability and the service life.

Specifically, the connecting portion 10, the blade 20, and the coupling portion 210 are integrally formed.

Referring to fig. 3, the blade 20 is disposed obliquely, and an included angle between the blade 20 and a plane 40 parallel to the ground is a; a is 5-75 degrees. The angle setting of the included angle A is set according to different air supply amounts.

Referring to fig. 5, the air circulation chamber 30 is provided in an oval shape.

Referring to fig. 1 and 2, the blade 20 is disposed in an arc shape.

Referring to fig. 1, the connecting portion 10 is hollow to form an opening-disposed cavity 130. The weight of the fan blade can be reduced as much as possible, so that the dead weight of the fan is reduced.

Referring to fig. 1, the connection part 10 is provided with a mounting hole 110 to facilitate connection with the fan body.

Referring to fig. 1 and 5, the end surface of the connecting portion 10 facing away from the blade 20 is an arc surface 120.

When the fan blades are combined, the arc-shaped surfaces 120 are sequentially connected to form a complete circular cavity 130, and the circular cavity 130 is a containing cavity of the containing cavity fan body.

In the present utility model, the blade 20 is hollow. The hollow arrangement may have heating elements such as heating films embedded in the blade 20 for generating heat to mix with air.

What is not described in detail in this specification is prior art known to those skilled in the art.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model, and the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying the number of technical features being indicated.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a flabellum of double cutting wind face, includes connecting portion (10), its characterized in that: two wind cutting blades (20) are arranged on the connecting part (10), and an air circulation cavity (30) is arranged between the two wind cutting blades (20).

2. The fan blade with double windward sides according to claim 1, wherein: one end of each wind cutting blade (20) far away from the connecting part (10) is provided with a combining part (210), and the combining parts (210) of the two wind cutting blades (20) are mutually connected.

3. The fan blade with double windward sides according to claim 2, wherein: the connecting part (10), the two wind cutting blades (20) and the two combining parts (210) are of an integrated structure.

4. A twin-bladed fan blade according to any of claims 1 to 3, wherein: the wind cutting blades (20) are obliquely arranged, and the included angle between each wind cutting blade (20) and a plane (40) parallel to the ground is A;

a is 5-75 degrees.