Desktop fan with detachable filter cover

By designing a removable filter cover on the desktop fan and utilizing a locking mechanism, the problem of difficult-to-clean filter cover is solved, achieving dust prevention and easy cleaning and maintenance of the fan blades.

CN223621828UActive Publication Date: 2025-12-02ZHONGSHAN HUAGONG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520145312.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-12-02
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

Existing desktop fan filters are difficult to clean, causing dust to accumulate on the fan blades and affecting performance.

Method used

A detachable filter cover was designed and fixed to the fan by a locking component. The filter cover is set at the air inlet, which can be easily removed and cleaned by the user.

Benefits of technology

It effectively prevents dust from entering the fan blades, keeps the fan blades clean, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223621828U_ABST
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Abstract

The desktop fan comprises a fan base, a spherical shell, a motor, fan blades, a locking component and the filter cover, the spherical shell is arranged on the fan base, the motor is horizontally and forwards arranged in the spherical shell, the fan blades are arranged in the spherical shell and fixedly connected with a rotating shaft of the motor, and the locking component is arranged on the fan base. An air outlet hole is formed in the front end of the spherical shell, an air inlet hole is formed in the rear end of the spherical shell, the filtering cover is arranged at the rear end of the spherical shell in a sleeving mode and wraps the air inlet hole, and the locking component is arranged at the rear end of the spherical shell and used for fixing the filtering cover. The filtering cover is arranged at the air inlet of the desktop fan, so that dust can be effectively prevented from entering the spherical shell and accumulating on the fan blades. The filtering cover is locked on the spherical shell through the locking component, a user can detach the filtering cover through the locking component, and the user can conveniently clean the filtering cover.
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Description

Technical Field

[0001] This utility model relates to the field of electric fan technology, specifically to a desktop fan with a detachable filter cover. Background Technology

[0002] When a desktop fan is in use, dust from the air enters through the fan's air intake and accumulates on the fan blades, causing them to become dirty. Current methods involve installing a filter at the fan's air intake to block dust; however, after prolonged use, the filter also accumulates a significant amount of dust. Since the filter is typically fixed to the fan, it is difficult to clean. Utility Model Content

[0003] To address the problem of difficult-to-clean filters in existing desktop fans, this invention provides a desktop fan with a detachable filter. The specific technical solution of this invention is as follows:

[0004] A desktop fan with a detachable filter cover includes: a fan base, a spherical shell, a motor, fan blades, a locking component, and a filter cover. The spherical shell is mounted on the fan base, the motor is horizontally forward mounted inside the spherical shell, the fan blades are mounted inside the spherical shell and fixedly connected to the rotating shaft of the motor, an air outlet is provided at the front end of the spherical shell, an air inlet is provided at the rear end of the spherical shell, the filter cover is fitted onto the rear end of the spherical shell and covers the air inlet, and the locking component is located on the rear end of the spherical shell for fixing the filter cover.

[0005] Furthermore, the filter cover is hemispherical, with several filter holes in the middle and a circular groove at the bottom.

[0006] Furthermore, the filter holes are rectangular.

[0007] Furthermore, the locking component is a knob, which includes a limiting part, a rotating part, and a locking part. Circular holes are provided on both sides of the rear end of the spherical shell. The rotating part is disposed in the circular holes. The limiting part is disposed inside the spherical shell. The locking part is disposed outside the spherical shell. Grooves for placing the rotating part are provided on both sides of the filter cover.

[0008] Furthermore, the air inlet and air outlet are regular hexagons.

[0009] Furthermore, a support rod is provided inside the spherical shell, and the motor is fixedly mounted to the spherical shell through the support rod.

[0010] Furthermore, a support shell is provided at the lower end of the fan base.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: The desktop fan described in this application has a filter cover at the air inlet, which can effectively prevent dust from entering the spherical shell and accumulating on the fan blades. The filter cover is locked to the spherical shell by a locking component, and the user can remove the filter cover by the locking component for easy cleaning. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a desktop fan in one embodiment of the present invention;

[0013] Figure 2 This is an exploded view of a desktop fan in one embodiment of the present invention;

[0014] Figure 3 This is a front view of a desktop fan in one embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of the back of a desktop fan in one embodiment of the present invention;

[0016] Figure 5 This is a schematic cross-section of a desktop fan in one embodiment of the present invention. Figure 1 ;

[0017] Figure 6 This is a schematic cross-section of a desktop fan in one embodiment of the present invention. Figure 2 . Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0019] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are 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. They should not be construed as limiting the specific protection scope of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in this description of the utility model, "at least" means one or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] like Figures 1 to 6 As shown, a desktop fan with a detachable filter cover 5 includes: a fan base 1, a spherical outer shell 2, a motor 3, fan blades 4, a locking component, and a filter cover 5. The spherical outer shell 2 is mounted on the fan base 1. The motor 3 is horizontally forward-mounted within the spherical outer shell 2. The fan blades 4 are mounted within the spherical outer shell 2 and fixedly connected to the rotating shaft of the motor 3. The front shell 6 of the spherical outer shell 2 has an air outlet 7, and the rear shell 8 of the spherical outer shell 2 has an air inlet 9. The filter cover 5 is fitted onto the rear shell 8 of the spherical outer shell 2 and covers the air inlet 9. Before air enters the filter hole 10, it is filtered by the filter cover 5, keeping the fan blades 4 clean during use. The locking component is mounted on the rear shell 8 of the spherical outer shell 2 to fix the filter cover 5, facilitating its installation and removal.

[0025] In one embodiment, the filter cover 5 is hemispherical, with a plurality of filter holes 10 provided in the middle position of the filter cover 5, and a circular groove 11 provided at the bottom of the filter cover 5.

[0026] In one embodiment, the filter hole 10 is rectangular. The rectangular filter hole 10 can increase the airflow, allowing the fan to generate more airflow.

[0027] In one embodiment, the locking component is a knob, which includes a limiting part 12, a rotating part 13, and a locking part 14. Circular holes 15 are provided on both sides of the rear shell 8 of the spherical outer shell 2. The rotating part 13 is disposed within the circular holes 15. The limiting part 12 is disposed inside the spherical outer shell 2, and the locking part 14 is disposed outside the spherical outer shell 2. Grooves 16 for accommodating the rotating part 13 are provided on both sides of the filter cover 5. The limiting part 12 prevents the knob from detaching from the rear shell 8 of the spherical outer shell 2. The rotating part 13 allows the knob to rotate within the circular holes 15. When the knob rotates backward, the locking part 14 rotates onto the filter cover 5, securing it. When the locking part 14 rotates forward, it disengages from the filter cover 5, allowing the filter cover 5 to be easily removed.

[0028] In one embodiment, the air inlet 9 and the air outlet 7 are regular hexagons.

[0029] In one embodiment, a support rod 17 is provided inside the spherical shell 2, and the motor 3 is fixedly mounted to the spherical shell 2 through the support rod 17.

[0030] In one embodiment, a support shell 18 is provided at the lower end of the fan base 1. The support shell 18 can effectively reduce the weight of the fan.

[0031] The desktop fan described in this application has a filter cover 5 at the air inlet 9, which can effectively prevent dust from entering the spherical outer shell 2 and accumulating on the fan blades 4. The filter cover 5 is locked to the spherical outer shell 2 by a locking component, and the user can remove the filter cover 5 by using the locking component for easy cleaning.

[0032] In the description of this specification, the terms "in one embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. The connection methods linked in the description of this specification have significant effects and practical utility.

[0033] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A desktop fan with a detachable filter cover, characterized in that, include: The fan housing comprises a fan base, a spherical outer shell, a motor, fan blades, a locking component, and a filter cover. The spherical outer shell is mounted on the fan base. The motor is horizontally mounted forward within the spherical outer shell. The fan blades are mounted within the spherical outer shell and fixedly connected to the motor's rotating shaft. An air outlet is located at the front end of the spherical outer shell, and an air inlet is located at the rear end. The filter cover is fitted over the rear end of the spherical outer shell and covers the air inlet. The locking component, a knob, is located at the rear end of the spherical outer shell and is used to secure the filter cover. The knob includes a limiting part, a rotating part, and a locking part. Circular holes are located on both sides of the rear end of the spherical outer shell. The rotating part is located within these holes. The limiting part is located inside the spherical outer shell, and the locking part is located outside the spherical outer shell. Grooves for housing the rotating part are located on both sides of the filter cover.

2. The desktop fan with a detachable filter cover according to claim 1, characterized in that, The filter cover is hemispherical, with several filter holes in the middle and a circular groove at the bottom.

3. The desktop fan with a detachable filter cover according to claim 2, characterized in that, The filter holes are rectangular.

4. The desktop fan with a detachable filter cover according to claim 1, characterized in that, The air inlet and air outlet are regular hexagons.

5. The desktop fan with a detachable filter cover according to claim 1, characterized in that, The spherical shell has a support rod inside, and the motor is fixed to the spherical shell through the support rod.

6. The desktop fan with a detachable filter cover according to claim 1, characterized in that, A support shell is provided at the lower end of the fan base.