An axial flow fan with filter replacement facilitated

Abstract

The utility model discloses a kind of axial flow fans convenient to replace filter, it is related to air purification equipment field, including fan assembly, the input end of fan assembly connects filter assembly, fan assembly includes fan cover, the inside of fan cover is equipped with axial flow fan, filter assembly includes face cover assembly, intermediate connecting piece is connected between face cover assembly and fan cover, face cover assembly includes front face cover and rear face cover, rear face cover is located in the side close to intermediate connecting piece, filter piece is equipped between front face cover and rear face cover, filter piece includes outer frame, filter screen is fixedly arranged in outer frame, a plurality of baffle is equipped in front face cover, air inlet window is equipped between adjacent two baffle, the utility model is designed as front face cover and rear face cover by face cover assembly, and buckle connection is used, so that the replacement operation of filter piece is simple and fast, without complex tool, greatly save the time and energy of user filter replacement.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment, specifically an axial flow fan that facilitates filter replacement. Background Technology

[0002] Ordinary fans can only move air, but cannot remove particulate matter or harmful gases from the air, causing pollutants to circulate and spread when used in polluted environments. Filtered fans typically consist of a fan module and a filter module. Their core function is to achieve air circulation through forced ventilation while filtering particulate matter or harmful gases. The working principle is that the fan draws in air, which is then filtered through layers of filters, and clean air is discharged.

[0003] Ordinary filter fans typically have housings made of molded plastic. The axial fan is fixed to the bottom of the fan housing with screws. In high-temperature environments, the plastic housing melts, causing the bottom of the fixed axial fan to collapse and tilt. The axial fan then rubs and collides with the inside of the housing, making it unable to operate normally.

[0004] Therefore, it is necessary to propose an axial fan that is easy to replace filters, has excellent performance, and can adapt to special environments. Utility Model Content

[0005] This invention provides an axial flow fan with an easy-to-replace filter, solving the problems mentioned in the background art.

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

[0007] An axial fan with an easy-to-replace filter includes a fan assembly with the input end of the fan assembly connected to the filter assembly.

[0008] The fan assembly includes a fan housing, inside which an axial fan is installed. The fan housing not only protects the axial fan but also guides the airflow.

[0009] The filter assembly includes a faceplate assembly, and an intermediate connector connects the faceplate assembly to the fan housing. This intermediate connector ensures a secure connection between the filter assembly and the fan assembly.

[0010] The faceplate assembly includes a front faceplate and a rear faceplate. The rear faceplate is located on the side near the middle connector. A filter element is provided between the front faceplate and the rear faceplate, making it easier to install and replace the filter element.

[0011] The filter element includes an outer frame, within which a filter screen is fixedly installed. The filter screen effectively filters particulate matter in the air, such as dust and pollen, as well as harmful gases, such as formaldehyde and odors, thereby improving air quality.

[0012] The front cover has multiple baffles, with air intake windows between adjacent baffles. The baffles and air intake windows help guide airflow, allowing air to pass more evenly through the filter and improving filtration efficiency.

[0013] Multiple baffles are tilted, which can better change the airflow direction, further optimize the path of air entering the filter element, and enhance the filtration effect.

[0014] Multiple baffles are arranged at equal intervals. This even arrangement ensures that the air intake window is of uniform size, resulting in more even airflow distribution and improved overall filtration performance.

[0015] A baffle is fixedly connected inside the rear cover. The baffle protects the filter element.

[0016] The fan casing features a cylindrical air duct with a mounting bracket inside, on which the axial fan is fixed. The cylindrical air duct design conforms to the airflow characteristics of the axial fan, guiding and concentrating airflow, improving the efficiency of the axial fan, reducing noise, and enhancing the uniformity of airflow.

[0017] The fan casing, front cover, rear cover, and sheet metal fasteners are all made of metal. Metal materials have excellent high-temperature resistance, making the fan suitable for high-temperature environments.

[0018] The front and rear covers are connected by snap-fit ​​fasteners. This snap-fit ​​connection facilitates disassembly and allows users to quickly replace the filter elements, improving ease of use.

[0019] The present invention has the following advantages:

[0020] This utility model designs the face cover assembly as a front face cover and a rear face cover, and uses a snap-fit ​​connection, which makes the replacement of the filter element simple and quick, without the need for complicated tools, and greatly saves users time and effort in replacing the filter.

[0021] By combining the inclined and equally spaced baffles inside the front cover with the air intake window, the path of airflow into the filter is optimized, allowing air to pass through the filter screen more evenly, thereby effectively improving filtration efficiency and better filtering particulate matter and harmful gases in the air.

[0022] The cylindrical air duct design inside the fan casing conforms to the airflow characteristics of axial fans, guiding and concentrating airflow, reducing airflow turbulence, lowering noise generated during fan operation, and providing a quieter operating environment.

[0023] In addition, the fan casing, front cover, rear cover, and fan sheet metal fasteners are all made of metal, giving the fan excellent high-temperature resistance and enabling it to operate stably in high-temperature environments, thus expanding the fan's application range. Attached Figure Description

[0024] Figure 1 A schematic diagram of the front three-dimensional structure of an axial fan designed to facilitate filter replacement.

[0025] Figure 2 A schematic diagram of the rear three-dimensional structure of an axial fan for easy filter replacement.

[0026] Figure 3 Exploded view of the axial fan structure for easy filter replacement.

[0027] In the diagram: 1. Filter assembly; 2. Fan assembly; 3. Fan housing; 4. Axial fan; 5. Front cover; 6. Rear cover; 7. Intermediate connector; 8. Baffle; 9. Baffle frame; 10. Outer frame; 11. Filter screen. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] Please see Figure 1-3 An axial flow fan with easy filter replacement consists of a fan assembly 2 and a filter assembly 1, with the input end of the fan assembly 2 connected to the filter assembly 1.

[0031] The fan assembly 2 includes a fan housing 3, on the inner side of which an axial fan 4 is installed. The fan housing 3 is made of metal, which not only provides physical protection for the axial fan 4 but also guides the airflow. The fan housing 3 has a cylindrical air duct, and a mounting bracket is installed inside the air duct, on which the axial fan 4 is fixed.

[0032] When actually installing the axial fan 4, first place the axial fan 4 in the corresponding position on the mounting bracket, and then secure it tightly to the mounting bracket using screws or other suitable fixing methods to ensure that the axial fan 4 will not shake during operation. The motor of the axial fan 4 passes through the air duct and is fixed to the support frame inside the air duct. The output shaft of the motor is connected to the fan blades inside the air duct. When the axial fan 4 is powered on, the motor drives the fan blades to rotate, generating suction and causing air to flow along the cylindrical air duct of the fan casing 3. This cylindrical air duct design conforms to the airflow characteristics of the axial fan 4, guiding and concentrating the airflow, effectively improving the efficiency of the axial fan 4, reducing noise, and improving the uniformity of airflow.

[0033] The filter assembly 1 includes a faceplate assembly, which is securely connected to the fan housing 3 via an intermediate connector 7. The intermediate connector 7 is a sheet metal fastener for the fan, which is also made of metal to ensure the stability and high-temperature resistance of the connection.

[0034] The faceplate assembly consists of a front faceplate 5 and a rear faceplate 6. The rear faceplate 6 is located on the side close to the middle connector 7. A filter element is provided between the front faceplate 5 and the rear faceplate 6, making the installation and replacement of the filter element more convenient.

[0035] The filter element consists of an outer frame 10 and a filter screen 11 fixed inside the outer frame 10. The filter screen 11 effectively filters particulate matter in the air, such as dust and pollen, as well as harmful gases such as formaldehyde and odors, thereby improving air quality. When installing the filter element, first fix the filter screen 11 inside the outer frame 10, ensuring that the filter screen 11 is firmly installed and will not loosen during use. Then, place the outer frame 10 with the filter screen 11 between the front cover 5 and the rear cover 6. At this time, the baffle 9 fixedly connected inside the rear cover 6 will contact the outer frame 10 of the filter element, providing protection and fixation for the filter element and preventing displacement or shaking of the filter element during fan operation.

[0036] The front cover 5 has multiple inclined and equidistantly arranged baffles 8, with air inlets between adjacent baffles 8. In actual use, when the fan operates and draws air in, the air enters through the air inlets of the front cover 5. The inclined baffles 8 can better change the airflow direction and optimize the path of air entering the filter element, so that after passing through the air inlets, the air is guided by the baffles 8 and passes through the filter screen 11 more evenly, thereby improving filtration efficiency. The equidistant arrangement of the baffles 8 ensures that the air inlets are of uniform size, further ensuring uniform airflow distribution and improving overall filtration performance.

[0037] The front cover 5 and the rear cover 6 are connected by snap-fit ​​mechanisms. When the filter needs to be replaced, the user simply presses the snap-fit ​​mechanism to open the connection between the front cover 5 and the rear cover 6, allowing for quick and easy removal of the filter for replacement. After replacement, the front cover 5 and the rear cover 6 are aligned and snapped together to complete the filter replacement operation. This snap-fit ​​connection method eliminates the need for complicated tools, significantly saving users time and effort in replacing the filter.

[0038] During use, upon power connection, the axial fan 4 begins operation. Air enters through the air intake window of the front cover 5, is guided by the inclined and equidistantly arranged baffles 8, and passes evenly through the filter screen 11, where particulate matter and harmful gases are filtered. The purified air is then expelled along the cylindrical air duct of the fan casing 3 under the action of the axial fan 4. Because the fan casing 3, front cover 5, rear cover 6, and fan sheet metal fasteners are all made of metal, the fan as a whole has excellent high-temperature resistance and can operate stably in high-temperature environments, providing users with efficient ventilation and air filtration functions.

[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. An axial flow fan with an easily replaceable filter, comprising a fan assembly (2), characterized in that, The input end of the fan assembly (2) is connected to the filter assembly (1); The fan assembly (2) includes a fan casing (3), and an axial fan (4) is provided on the inner side of the fan casing (3). The filter assembly (1) includes a face cover assembly, and an intermediate connector (7) is connected between the face cover assembly and the fan casing (3). The faceplate assembly includes a front faceplate (5) and a rear faceplate (6), with the rear faceplate (6) located on the side close to the intermediate connector (7), and a filter element provided between the front faceplate (5) and the rear faceplate (6); The filter element includes an outer frame (10), and a filter screen (11) is fixedly installed inside the outer frame (10).

2. The axial fan (4) with easy filter replacement according to claim 1, characterized in that, The front cover (5) is provided with multiple baffles (8), and an air inlet is provided between two adjacent baffles (8).

3. The axial fan (4) with easy filter replacement according to claim 2, characterized in that, Multiple baffles (8) are all tilted.

4. The axial fan (4) with easy filter replacement according to claim 2, characterized in that, Multiple baffles (8) are arranged at equal intervals.

5. The axial fan (4) with easy filter replacement according to claim 1, characterized in that, A baffle (9) is fixedly connected inside the rear cover (6).

6. The axial fan (4) with easy filter replacement according to claim 1, characterized in that, The fan casing (3) is provided with a cylindrical air duct, and an installation frame is provided inside the air duct. The axial fan (4) is fixed on the support frame.

7. The axial fan (4) with easy filter replacement according to claim 1, characterized in that, The fan casing (3), front cover (5), rear cover (6) and fan sheet metal fasteners are all made of metal materials.

8. The axial fan (4) with easy filter replacement according to claim 1, characterized in that, The front cover (5) and the rear cover (6) are connected by snap fasteners.

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