A large flow air circulating fan

Abstract

The utility model discloses a kind of high-flow air circulation fan, including motor, rotating part, fan blade connecting rod and fan blade, the output shaft of the motor is connected with the rotating part, the rotating part is connected with a plurality of the fan blade connecting rod on the side, the outer end of each fan blade connecting rod is connected with a fan blade, the motor, the rotating part, the fan blade connecting rod and the fan blade are all arranged in a side frame interior, the upper end of the side frame is fixedly connected with the shell of the motor by connecting support, the lower end of the side frame is installed with air inlet net, the blade of the fan blade is parallel with the axial direction of the motor or the blade of the fan blade is with the axial direction of the motor certain angle, the side frame includes multiple fairing, the outside of each fairing is downwardly inclined inclined surface.The utility model can make airflow flow into simultaneously from the upper end and lower end of fan, and along the fairing of side frame, it is obliquely flowed out from side, and air supply distance is more far, and the efficiency of air circulation is improved.

Description

Technical Field

[0001] This utility model relates to a fan, specifically a high-flow-rate 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 axis of the fan blades. This not only results in a single direction of airflow but also a small blowing range and short delivery distance, leading to a small effective space for airflow and making it difficult for the air to circulate quickly within that space. Utility Model Content

[0003] The purpose of this invention is to provide a high-flow-rate air circulation fan that allows airflow to flow in simultaneously from the top and bottom of the fan and flow out obliquely downwards from the side along the guide ring of the side frame, resulting in a longer air delivery distance and improved air circulation efficiency.

[0004] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 high-flow-rate air circulation fan includes a motor, a rotating part, fan blade connecting rods, and fan blades. The output shaft of the motor is connected to the rotating part. Multiple fan blade connecting rods are connected to the periphery of the rotating part. Each fan blade connecting rod has a fan blade connected to its outer end. The motor, the rotating part, the fan blade connecting rods, and the fan blades are all housed inside a side frame. The upper end of the side frame is fixedly connected to the motor housing via a connecting bracket. An air inlet screen is installed at the lower end of the side frame. The blades of the fan blades are parallel to the axial direction of the motor or form a certain angle with the axial direction of the motor, so that airflow flows into the fan from the gaps between the connecting brackets at the upper end of the side frame and the air inlet screen at the lower end of the side frame, and flows out from the gaps in the side frame. The side frame includes multiple guide rings, each of which has a downwardly sloping outer side.

[0007] The fan of this invention can draw in air from both the top and bottom simultaneously and exhaust air from the middle side frame. The guide ring on the side frame can guide the airflow, making the airflow smoother and enabling the air to be delivered over a longer distance.

[0008] This utility model also has the following improved design features:

[0009] The side frame of this invention consists of an upper frame, a middle frame, and a lower frame connected as a whole. The upper frame is fixedly connected to the motor housing via a connecting bracket. The middle frame comprises multiple guide rings and connecting rods that connect the guide rings. The upper end of the connecting rod is connected to the upper frame, and the lower end is connected to the lower frame. The air inlet screen is mounted on the lower frame. In addition to airflow guidance, the side frame of this invention also provides safety protection, ensuring safe use. Furthermore, the fan blades can be made larger and provide a greater airflow thanks to the protection of the side frame. The air inlet screen can be a flat screen, which is less expensive than the concave screens commonly used on fans.

[0010] The outer end of the fan blade connecting rod of this utility model is a bent section, and the fan blade is fixedly connected to the bent section to achieve the effect of spiral air outlet, accelerate air circulation, and make the air in the space more uniform.

[0011] The motor housing of this invention is connected to a hoisting bracket at the upper end, allowing the fan to be suspended and mounted in various locations.

[0012] The motor housing of this invention has a junction box installed on the upper end for convenient storage of the power cord.

[0013] 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.

[0014] 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.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The fan of this utility model can simultaneously draw in air from the top and bottom, and exhaust air from the middle side frame. The guide ring on the side frame can guide the airflow, making the airflow smoother and able to deliver the air a longer distance. It enables the fan to blow air in all directions 360 degrees, and has the advantages of large air volume, wide range, and large effective space for air flow.

[0017] 2. The side frame of this utility model not only guides airflow but also provides safety protection, ensuring safe use. Furthermore, the fan blades can be made larger under the protection of the side frame, providing a greater airflow. The air inlet screen can be a flat screen, which is less expensive than the concave screens commonly used on fans. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a high-flow-rate air circulation fan according to this utility model. The arrow indicates the direction of airflow.

[0019] Figure 2 yes Figure 1 A bottom view of a medium-to-high flow rate air circulation fan;

[0020] Figure 3 yes Figure 1 3D view of a medium-to-high flow rate air circulation fan;

[0021] Figure 4 yes Figure 3 Internal structure diagram of a medium-to-high flow rate air circulation fan;

[0022] Figure 5 This is a front view of a side frame used in this utility model;

[0023] Figure 6 yes Figure 5 Sectional view A-A.

[0024] Explanation of reference numerals in the attached drawings: 1. Lifting bracket; 2. Junction box; 3. Motor; 4. Rotating part; 5. Fan blade connecting rod; 6. Fan blade; 7. Connecting bracket; 8. Side frame; 81. Upper frame; 82. Middle frame; 821. Middle frame connecting rod; 822. Guide ring; 83. Lower frame; 9. Air inlet screen. Detailed Implementation

[0025] 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.

[0026] Example:

[0027] A high-flow-rate air circulation fan, such as Figures 1 to 6 As shown, the fan includes a motor 3, a rotating part 4, a fan blade connecting rod 5, and a fan blade 6. The output shaft of the motor 3 is connected to the rotating part 4. Multiple fan blade connecting rods 5 are connected to the periphery of the rotating part 4. Each fan blade connecting rod 5 has a fan blade 6 connected to its outer end. The motor 3, rotating part 4, fan blade connecting rods 5, and fan blade 6 are all housed inside a side frame 8. The upper end of the side frame 8 is fixedly connected to the housing of the motor 3 via a connecting bracket 7. An air inlet screen 9 is installed at the lower end of the side frame 8. The blades of the fan blade 6 are parallel to the axis of the motor 3 or form a certain angle with the axis of the motor 3, so that the airflow flows into the fan from the gaps between the connecting brackets 7 at the upper end of the side frame 8 and the air inlet screen 9 at the lower end of the side frame 8, and flows out from the gaps of the side frame 8. The side frame 8 includes multiple guide rings 822, and the outer side of each guide ring 822 is a downward sloping surface.

[0028] In one embodiment, the side frame 8 is composed of an upper frame 81, a middle frame 82 and a lower frame 83 connected as a whole. The upper frame 81 is fixedly connected to the housing of the motor 3 through a connecting bracket 7. The middle frame 82 is composed of multiple guide rings 822 and a middle frame connecting rod 821 connecting each guide ring 822. The upper end of the middle frame connecting rod 821 is connected to the upper frame 81, and the lower end of the middle frame connecting rod 821 is connected to the lower frame 83. An air inlet screen 9 is installed on the lower frame 83.

[0029] In one embodiment, the outer end of the fan blade connecting rod 5 is a bent section, on which the fan blade 6 is fixedly connected to achieve a spiral airflow effect and accelerate air circulation.

[0030] In one embodiment, the upper end of the housing of the motor 3 is connected to a lifting bracket 1, so that the fan can be suspended and installed in various situations.

[0031] In one embodiment, a junction box 2 is installed on the upper end of the housing of the motor 3 to facilitate the storage of the power cord.

[0032] In one embodiment, the inner edge of the blade 6 facing the wind is an arc-shaped edge. The arc-shaped edge prevents the sound waves generated when the blade 6 comes into contact with and separates from the air from superimposing, thereby reducing noise.

[0033] In one embodiment, the outer edge of the wind turbine blade 6 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 turbine blade, thereby effectively reducing the vortex noise of the wind turbine blade.

[0034] 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 high-flow-rate air circulation fan, comprising a motor (3), a rotating part (4), a fan blade connecting rod (5), and a fan blade (6), wherein the output shaft of the motor (3) is connected to the rotating part (4), and a plurality of fan blade connecting rods (5) are connected to the periphery of the rotating part (4), and a fan blade (6) is connected to the outer end of each fan blade connecting rod (5), characterized in that: The motor (3), the rotating part (4), the fan blade connecting rod (5) and the fan blade (6) are all set inside a side frame (8). The upper end of the side frame (8) is fixedly connected to the housing of the motor (3) through a connecting bracket (7). An air inlet net (9) is installed at the lower end of the side frame (8). The blades of the fan blade (6) are parallel to the axis of the motor (3) or the blades of the fan blade (6) are at a certain angle to the axis of the motor (3), so that the airflow flows into the fan from the gaps between the connecting brackets (7) at the upper end of the side frame (8) and the air inlet net (9) at the lower end of the side frame (8), and flows out from the gaps of the side frame (8). The side frame (8) includes multiple guide rings (822), and the outer side of each guide ring (822) is a downward inclined surface.

2. The high-flow-rate air circulation fan according to claim 1, characterized in that: The side frame (8) is composed of an upper frame (81), a middle frame (82) and a lower frame (83) connected together. The upper frame (81) is fixedly connected to the housing of the motor (3) through a connecting bracket (7). The middle frame (82) is composed of multiple guide rings (822) and a middle frame connecting rod (821) connecting each guide ring (822). The upper end of the middle frame connecting rod (821) is connected to the upper frame (81), and the lower end of the middle frame connecting rod (821) is connected to the lower frame (83). The air inlet mesh (9) is installed on the lower frame (83).

3. The high-flow-rate air circulation fan according to claim 2, characterized in that: The outer end of the fan blade connecting rod (5) is a bent section, and the fan blade (6) is fixedly connected to the bent section.

4. The high-flow-rate air circulation fan according to claim 1, characterized in that: The upper end of the housing of the motor (3) is connected to a hoisting bracket.

5. The high-flow-rate air circulation fan according to claim 1, characterized in that: A junction box is installed on the upper end of the housing of the motor (3).

6. The high-flow-rate air circulation fan according to claim 1, characterized in that: The inner edge of the wind-facing blade (6) is arc-shaped.

7. The high-flow-rate air circulation fan according to claim 1, characterized in that: The outer edge of the wind vane (6) on the leeward side is serrated.

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