Vertically-hoisted air circulation fan

Abstract

The utility model discloses a vertically hoisted air circulation fan, which comprises a motor, a protective net cover and a plurality of fan blades positioned in the protective net cover, an output shaft at the front end of the motor is connected with a rotating part, the rotating part is connected with a plurality of fan blade connecting rods which are positioned on the side surface of the rotating part and are uniformly distributed along the circumferential direction, and the fan blade connecting rods are connected with the motor. The front ends of the fan blades are connected to the tail ends of the fan blade connecting rods, the rear ends of the fan blades face the rear portion of the rotating part, and the rear ends of the fan blades incline towards the outer side away from the rotating part; the rear end of the motor is connected with a hoisting support and a connecting support used for fixing the protective net cover. According to the utility model, the effective space for air flow is larger, and the air circulation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a fan, specifically a vertically suspended air circulation fan. Background Technology

[0002] Traditional axial flow fans draw in air from the back and exit from the front, with the airflow moving in a single direction along the axial direction of the fan blades. Not only is the direction of air intake and exhaust unidirectional, but the range of airflow is also small, resulting in a small effective space for airflow and making it difficult for the air to circulate within that space. Utility Model Content

[0003] The purpose of this invention is to provide a vertically suspended air circulation fan that can simultaneously draw in air from the front and rear of the fan along the axial direction, and discharge air circumferentially forward on the side of the fan, thereby increasing the effective space for airflow and improving air circulation efficiency.

[0004] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0005] The objective of this utility model can be achieved through the following technical solutions.

[0006] A vertically suspended air circulation fan includes a motor, a protective mesh cover, and multiple fan blades located inside the protective mesh cover. The output shaft at the front end of the motor is connected to a rotating part. The rotating part is connected to multiple fan blade connecting rods located on the side of the rotating part and evenly distributed along the circumference. The front end of the fan blade is connected to the end of the fan blade connecting rod, the rear end of the fan blade faces the rear of the rotating part, and the rear end of the fan blade is inclined outward away from the rotating part.

[0007] The rear end of the motor is connected to a hoisting bracket and a connecting bracket for fixing the protective mesh cover.

[0008] This invention improves upon the traditional axial flow fan by modifying the structure of the fan blade connecting rod and the fan blades. The fan blade connecting rod is designed as a thin rod, and the fan blades are distributed in a manner similar to those of a centrifugal fan. The improved air circulation fan can simultaneously draw in air axially from both the front and rear of the fan, and discharge air circumferentially forward at an angle on the side of the fan, thus creating a larger effective space for airflow and making it easier to increase the air volume.

[0009] This utility model also has the following improved design features:

[0010] The wind turbine connecting rod of this utility model includes a first straight rod and a second straight rod with an included angle, and the second straight rod is connected to the wind turbine.

[0011] More preferably, the angle between the first straight rod and the second straight rod is 102±1°, which can better ensure the air intake and exhaust effect and improve the air circulation efficiency.

[0012] More preferably, the second straight rod is inclined forward of the rotating part, and the angle between the second straight rod and the normal plane of the rotating part's rotation axis is 11±1°, which can further improve the air circulation efficiency.

[0013] As a preferred design, the motor of this invention is located inside the protective mesh cover.

[0014] As a preferred design, the connecting bracket of this utility model consists of multiple connecting rods that connect the motor and the protective mesh cover in a radial distribution.

[0015] The inner edge of the wind-facing blade of this invention is arc-shaped. The arc-shaped edge prevents the sound waves generated when the blade contacts and separates from the air from superimposing, thus reducing noise.

[0016] The outer edge of the wind turbine blade in the leeward direction of this invention is a serrated edge. The serrated groove structure reduces the separation vortex concentrated at the trailing edge of the wind turbine blade, thereby effectively reducing the vortex noise of the wind turbine blade.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The air circulation fan of this utility model can simultaneously draw in air from the front and rear of the fan along the axial direction, and discharge air circumferentially forward on the side of the fan, so that the effective space for air flow is larger and it is easier to achieve the effect of increasing air flow.

[0019] 2. The air circulation fan of this utility model is particularly suitable for vertical installation above the room, which can realize air intake from the top and bottom of the fan and air exhaust from the sides and bottom, thereby improving air circulation efficiency.

[0020] 3. The structure of this utility model is similar to that of a traditional axial flow fan. It has a compact and simple structure and low production cost. Attached Figure Description

[0021] Figure 1 This is a perspective view of a vertically suspended air circulation fan according to the present invention, with the arrow indicating the direction of airflow;

[0022] Figure 2 yes Figure 1 A schematic diagram of the front structure of a vertically suspended air circulation fan;

[0023] Figure 3 yes Figure 1 A 3D view of a vertically suspended air circulation fan after the protective netting has been removed;

[0024] Figure 4 yes Figure 3 Side view of a vertically suspended air circulation fan;

[0025] Figure 5 yes Figure 2 A schematic diagram of the front structure of a vertically suspended air circulation fan after the protective netting has been removed;

[0026] Figure 6 This is an exploded view of a vertically suspended air circulation fan according to this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Motor; 2. Protective mesh cover; 3. Fan blade; 4. Lifting bracket; 5. Rotating part; 6. Fan blade connecting rod; 6a. First straight rod; 6b. Second straight rod; 7. Connecting bracket; 8. Junction box; A. Rotating part rotation axis; B. Normal plane of rotating part rotation axis; α. Angle between the second straight rod and the normal plane of rotating part rotation axis; β. Angle between the first straight rod and the second straight rod. Detailed Implementation

[0028] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments, so that those skilled in the art can better understand and implement the technical solution of this utility model.

[0029] Example

[0030] A vertically suspended air circulation fan, such as Figures 1 to 6 As shown, it includes a motor 1, a protective net cover 2, and multiple fan blades 3 located inside the protective net cover 2. The output shaft at the front end of the motor 1 is connected to a rotating part 5. The rotating part 5 is connected to multiple fan blade connecting rods 6 located on the side of the rotating part 5 and evenly distributed along the circumference. The front end of the fan blade 3 is connected to the end of the fan blade connecting rod 6. The rear end of the fan blade 3 faces the rear of the rotating part 5, and the rear end of the fan blade 3 is inclined to the outside away from the rotating part 5.

[0031] The rear end of the motor 1 is connected to a hoisting bracket 4 and a connecting bracket 7 for fixing the protective net cover 2. The rear end of the motor 1 can also be used to fix the junction box 8, and the power cord can be placed inside the junction box 8.

[0032] In one embodiment, see Figure 5 The fan blade connecting rod 6 includes a first straight rod 6a and a second straight rod 6b with an included angle, and the second straight rod 6b is connected to the fan blade 3.

[0033] In one embodiment, the angle β between the first straight rod 6a and the second straight rod 6b is 102±1°, which can better ensure the air intake and exhaust effect and improve the air circulation efficiency.

[0034] In one embodiment, see Figure 4 The second straight rod 6b is inclined forward of the rotating part 5, and the angle α between the second straight rod 6a and the normal plane B of the rotating part's rotation axis A is 11±1°, which can further improve the air circulation efficiency.

[0035] In one embodiment, the motor 1 is located inside the protective mesh cover 2.

[0036] In one embodiment, the connecting bracket 7 consists of multiple connecting rods that connect the motor 1 and the protective mesh cover 2 in a radial arrangement.

[0037] In one embodiment, the inner edge of the windward side of the blade 3 is an arc-shaped edge. The arc-shaped edge prevents the sound waves generated when the blade contacts and separates from the air from superimposing each other, thereby reducing noise.

[0038] In one embodiment, the outer edge of the wind blade 3 on the leeward side is a sawtooth edge. The sawtooth groove structure is used to reduce the separation vortex concentrated at the trailing edge of the wind blade, thereby effectively reducing the vortex noise of the wind blade.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vertically suspended air circulation fan, comprising a motor (1), a protective mesh cover (2), and a plurality of fan blades (3) located inside the protective mesh cover (2), characterized in that: The output shaft at the front end of the motor (1) is connected to a rotating part (5). The rotating part (5) is connected to a plurality of fan blade connecting rods (6) located on the side of the rotating part (5) and evenly distributed along the circumference. The front end of the fan blade (3) is connected to the end of the fan blade connecting rod (6). The rear end of the fan blade (3) faces the rear of the rotating part (5) and the rear end of the fan blade (3) is inclined to the outside away from the rotating part (5). The rear end of the motor (1) is connected to a hoisting bracket (4) and a connecting bracket (7) for fixing the protective net cover (2).

2. The vertically suspended air circulation fan according to claim 1, characterized in that: The fan blade connecting rod (6) includes a first straight rod (6a) and a second straight rod (6b) with an included angle, and the second straight rod (6b) is connected to the fan blade (3).

3. The vertically suspended air circulation fan according to claim 2, characterized in that: The angle (β) between the first straight rod (6a) and the second straight rod (6b) is 102±1°.

4. The vertically suspended air circulation fan according to claim 3, characterized in that: The second straight rod (6b) is inclined forward of the rotating part (5), and the angle (α) between the second straight rod (6b) and the normal plane (B) of the rotating part's rotation axis (A) is 11±1°.

5. The vertically suspended air circulation fan according to claim 1, characterized in that: The motor (1) is located inside the protective mesh cover (2).

6. The vertically suspended air circulation fan according to claim 5, characterized in that: The connecting bracket (7) consists of multiple connecting rods that connect the motor (1) and the protective mesh cover (2) in a radial arrangement.

7. The vertically suspended air circulation fan according to claim 1, characterized in that: The inner edge of the wind-facing blade (3) is arc-shaped.

8. The vertically suspended air circulation fan according to claim 1, characterized in that: The outer edge of the wind vane (3) on the leeward side is serrated.

Images