A filter structure for an axial flow fan

Abstract

The utility model discloses a filter structure for axial flow fan relates to axial flow fan accessory field, including filter cover, filter cover is by front cover and rear cover and is composed, and sets up filter piece between front cover and rear cover, and the bottom of front cover is connected dust collection component, and the collection and processing of dust are convenient, and dust collection component includes the dust collection cover of fixed setting in the bottom of front cover, is equipped with dust collection chamber in dust collection cover. The opening of dust collection cover one end sets up, and the pull -out box for collecting dust is inserted and is equipped with in dust collection chamber, and pull -out box passes through the open end of dust collection cover and fixedly connected end part cover. The dust collection box of pull -out type is convenient for user to clean dust regularly, and the operation is simple and convenient, and the utility model discloses a dust collection component can be accumulated on filter screen plate and influence ventilation when a large amount of dust, through the form of reverse blowing dust and realizes the effective collection of dust. User only needs to draw out pull -out box and pour out dust regularly, and the operation is simple and convenient, saves time and energy.

Description

Technical Field

[0001] This utility model relates to the field of axial fan accessories, specifically a filter structure for axial fans. Background Technology

[0002] In practical applications of axial fans, a filter structure is usually provided to ensure air quality or prevent dust and other impurities from entering the fan and affecting its performance.

[0003] However, existing axial fan filter structures have some shortcomings. On the one hand, dust accumulated on the filter screen is difficult to clean effectively. As usage time increases, the amount of dust gradually increases, which seriously affects the filtration effect and ventilation efficiency, and may even lead to increased energy consumption and shortened lifespan of the axial fan. On the other hand, existing filter structures are not well-designed in terms of dust collection and cleaning, and are not convenient to operate, requiring a lot of time and effort to clean the dust.

[0004] Therefore, it is of great significance to develop a filter structure for axial flow fans that can facilitate dust cleaning, improve filtration efficiency, and extend service life. Utility Model Content

[0005] This invention provides a filter structure for axial flow fans, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A filter structure for an axial flow fan includes a filter housing composed of a front cover and a rear cover. A filter element is disposed between the front cover and the rear cover, and a dust collection assembly is connected to the bottom end of the front cover. This organically combines filtration and dust collection functions, facilitating dust collection and treatment.

[0008] The dust collection assembly includes a dust collection hood fixedly mounted at the bottom of the front cover, with a dust collection chamber inside. One end of the dust collection hood is open, and a pull-out box for collecting dust is inserted into the dust collection chamber. The pull-out box passes through the open end of the dust collection hood and is fixedly connected to an end cap. The pull-out dust collection box allows users to easily clean the dust regularly, and the operation is simple and convenient.

[0009] The bottom of the front cover has a dust inlet, and the top of the dust collection cover has a dust collection groove that communicates with the dust inlet. The dust inlet and dust collection groove ensure that dust can fall smoothly from the filter structure into the dust collection box.

[0010] As a preferred embodiment of this invention, a docking seat is fixedly connected to the end of the rear cover away from the front cover. The docking seat is used for docking and installation with the axial fan, so that the filter structure and the axial fan are tightly integrated, ensuring smooth airflow.

[0011] As a preferred embodiment of this invention, the filter element includes a filter screen, the outer edge of which is provided with a rectangular frame. The rectangular frame can better fix the filter screen and facilitates installation with other components of the filter housing.

[0012] As a preferred technical solution of this utility model, a baffle is fixedly provided on the inner side wall of the front cover, and a plurality of pressing columns are fixedly provided on the side of the rear cover near the front cover. The rectangular frame of the outer edge of the filter screen is located between the pressing columns and the baffle.

[0013] In a preferred embodiment of this invention, a vent is provided at the end of the front cover away from the rear cover, and multiple air guide plates are installed inside the vent. The air guide plates help guide air into the filter structure, allowing air to pass through the filter mesh more evenly and improving filtration efficiency.

[0014] As a preferred embodiment of this invention, multiple air guide plates are arranged at an angle. The angled air guide plates can better change the airflow direction, further optimize the path of air entering the filter structure, enhance the contact between the air and the filter screen, and improve the filtration effect.

[0015] As a preferred embodiment of this invention, multiple air guide plates are arranged at equal intervals. This equidistant arrangement of the air guide plates ensures uniform airflow distribution at the ventilation openings, allowing air to pass evenly through the filter screen and avoiding uneven filtration in certain areas.

[0016] As a preferred embodiment of this invention, dust discharge ramps are provided on both sides of the dust collection port, and the ramps are located at the bottom inside the front cover. The design of the dust discharge ramps guides dust to slide smoothly into the dust collection port, preventing dust from accumulating at the bottom and improving the efficiency of dust collection.

[0017] As a preferred embodiment of this invention, the dust collection hood is made of iron, and a magnetic suction plate is embedded in the end cover on the side near the dust collection hood. Through the mutual attraction between the magnetic suction plate and the iron dust collection hood, the end cover can be tightly fitted to the dust collection hood to prevent dust leakage, and at the same time, it is convenient to open and close the end cover.

[0018] This invention has the following advantages: The filter screen plate installed between the front and rear covers effectively filters dust and other impurities in the air, ensuring the quality of the air discharged from the axial fan. By incorporating a dust collection component, when a large amount of dust accumulates on the filter screen plate and affects ventilation, the dust is effectively collected by blowing it off through reverse airflow. Users only need to periodically pull out the pull-out box to empty the dust; the operation is simple and convenient, saving time and effort. Attached Figure Description

[0019] Figure 1A schematic diagram of the front three-dimensional structure of a filter structure for an axial flow fan.

[0020] Figure 2 A schematic diagram of the rear three-dimensional structure of the filter structure for an axial fan.

[0021] Figure 3 An exploded three-dimensional structural diagram of a filter structure for an axial flow fan.

[0022] Figure 4 An exploded sectional view of a filter structure for an axial fan.

[0023] Figure 5 This is a schematic diagram of the end cap structure in the filter structure for an axial fan.

[0024] In the diagram: 1. Front cover; 2. Rear cover; 3. Docking seat; 4. Dust collection cover; 5. Air guide plate; 6. Filter plate; 7. Pull-out box; 8. Dust collection trough; 9. End cover; 10. Dust outlet; 11. Dust discharge ramp; 12. Magnetic suction plate; 13. Baffle frame; 14. Pressing column. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" 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.

[0027] Please see Figure 1-5 A filter structure for an axial flow fan is provided, consisting of a filter cover and a dust collection assembly. The filter cover is composed of a front cover 1 and a rear cover 2, with a filter element placed between them. The bottom of the front cover 1 is connected to the dust collection assembly, thus realizing the organic combination of filtration and dust collection functions, which facilitates the collection and treatment of dust.

[0028] A vent is located at the end of the front cover 1 furthest from the rear cover 2. Multiple inclined air guide plates 5 are arranged at equal intervals within the vent. These air guide plates 5 guide air evenly and smoothly into the filter structure, optimizing the airflow path and enhancing the contact between the air and the filter screen 6, thereby improving filtration efficiency. A baffle frame 13 is fixedly installed on the inner wall of the front cover 1, with a dust collection port 10 extending through its bottom. Dust discharge ramps 11 are located on both sides of the dust collection port 10, at the bottom inside the front cover 1. The dust discharge ramps 11 guide dust to slide smoothly into the dust collection port 10, preventing dust accumulation at the bottom and improving dust collection efficiency.

[0029] A docking seat 3 is fixedly connected to the end of the rear cover 2 away from the front cover 1. The docking seat 3 is used to dock with the axial fan to ensure that the filter structure is tightly connected to the axial fan and to ensure smooth airflow. Multiple clamping posts 14 are fixedly provided on the side of the rear cover 2 near the front cover 1.

[0030] The filter element includes a filter screen 6 with a rectangular frame. The rectangular frame better secures the filter screen 6 and facilitates installation with other components of the filter housing. During installation, the filter screen 6 is placed between the front cover 1 and the rear cover 2, with the rectangular frame at the outer edge of the filter screen 6 positioned between the clamping post 14 and the baffle 13. This securely fixes the filter screen 6, preventing it from shaking during airflow and ensuring stable filtration performance.

[0031] The dust collection assembly consists of a dust collection hood 4, a pull-out box 7, and an end cap 9. The dust collection hood 4 is fixedly installed at the bottom of the front cover 1, and its top has a dust collection groove 8 that communicates with the dust inlet 10. The dust collection hood 4 has a dust collection chamber inside, and one end of the dust collection hood 4 is open. The pull-out box 7 is inserted into the dust collection chamber, passes through the open end of the dust collection hood 4, and is fixedly connected to the end cap 9. The dust collection hood 4 is made of iron. A magnetic suction plate 12 is embedded on the side of the end cap 9 near the dust collection hood 4. The magnetic suction plate 12 attracts the iron dust collection hood 4, making the end cap 9 fit tightly against the dust collection hood 4, which can prevent dust leakage and facilitate the opening and closing of the end cap 9.

[0032] In the implementation of this invention, the docking seat 3 of the filter structure is first connected to the axial flow fan to ensure a secure connection. After installation, the axial flow fan is started. At this time, air enters through the vent on the front cover 1, and the inclined and equidistant air guide plates 5 inside the vent guide the air evenly through the filter screen 6, filtering out dust and other impurities in the air. The filtered air then passes through the rear cover 2 and the docking seat 3, and is finally discharged through the axial flow fan, thus ensuring the quality of the air discharged by the axial flow fan.

[0033] Over time, dust accumulates on the filter screen 6, potentially forming clumps and hindering ventilation. To address this, the axial fan can be reversed. The reverse airflow from the reversed fan dislodges the dust on the air intake side of the filter screen 6. The dust falls to the bottom of the front cover 1 and, guided by the dust discharge ramp 11, smoothly enters the dust inlet 10, then falls through the dust collection trough 8 into the pull-out box 7, achieving effective dust collection. To prevent dust from escaping through the vents of the front cover 1 during reverse blowing, the axial fan can be intermittently activated, creating a pulsed airflow. This ensures that dust blown off the filter screen 6 falls to the bottom of the front cover 1 and is effectively collected by the pull-out box 7. Regularly removing the pull-out box 7 and emptying the collected dust completes the cleaning of the filter structure. After cleaning, the axial fan is restored to forward rotation, and the filter structure resumes normal operation.

[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 filter structure for an axial flow fan, comprising a filter housing, characterized in that, The filter cover includes a front cover (1) and a rear cover (2), with a filter element provided between the front cover (1) and the rear cover (2), and the bottom end of the front cover (1) is connected to a dust collection assembly; The dust collection assembly includes a dust collection hood (4) fixedly installed at the bottom of the front cover (1). The dust collection hood (4) has a dust collection chamber inside. One end of the dust collection hood (4) is open. A pull-out box (7) for collecting dust is inserted into the dust collection chamber. The pull-out box (7) passes through the open end of the dust collection hood (4) and is fixedly connected to the end cover (9). The bottom end of the front cover (1) is provided with a dust inlet (10), and the top end of the dust collection cover (4) is provided with a dust collection groove (8) that is connected to the dust inlet (10).

2. The filter structure for an axial flow fan according to claim 1, characterized in that, The rear cover (2) is fixedly connected to a docking seat (3) at the end away from the front cover (1).

3. The filter structure for an axial flow fan according to claim 1, characterized in that, The filter element includes a filter screen (6), and the outer edge of the filter screen (6) is provided with a rectangular frame.

4. The filter structure for an axial flow fan according to claim 3, characterized in that, The inner wall of the front cover (1) is fixedly provided with a baffle (13), and the rear cover (2) is fixedly provided with a plurality of pressing columns (14) on the side near the front cover (1). The rectangular frame of the outer edge of the filter screen (6) is located between the pressing column (14) and the baffle (13).

5. The filter structure for an axial flow fan according to claim 1, characterized in that, The front cover (1) is provided with a vent at the end away from the rear cover (2), and a plurality of air guide plates (5) are provided inside the vent.

6. The filter structure for an axial flow fan according to claim 5, characterized in that, Multiple air guide plates (5) are all set at an angle.

7. The filter structure for an axial flow fan according to claim 5, characterized in that, Multiple air guide plates (5) are arranged at equal intervals.

8. The filter structure for an axial flow fan according to claim 1, characterized in that, Dust discharge ramps (11) are provided on both sides of the dust discharge port (10), and the dust discharge ramps (11) are located at the bottom inside the front cover (1).

9. The filter structure for an axial flow fan according to claim 1, characterized in that, The dust collection hood (4) is made of iron, and a magnetic suction plate (12) is embedded on the side of the end cover (9) near the dust collection hood (4).

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