Noise reduction fan assembly

Abstract

The utility model discloses a noise reduction fan assembly, which belongs to the technical field of electric appliances and comprises a shell, a mesh enclosure and a fan are arranged in the shell, the mesh enclosure is arranged between the shell and the fan, a shell air inlet and a shell air outlet are arranged on the shell, the fan is provided with a fan air inlet and a fan air outlet, and the fan air inlet and the fan air outlet are communicated with each other. The shell air inlet is communicated with the fan air inlet flow channel, the shell air outlet is communicated with the fan air outlet flow channel, the net cover is arranged in the flow channel between the shell air outlet and the fan air outlet, the shell air inlet and the shell air outlet are located on the same side of the shell, and the shell air inlet is communicated with the fan air inlet flow channel. The mesh enclosure is arranged around the fan and comprises a first mesh enclosure and a second mesh enclosure. According to the noise reduction fan assembly, the mesh enclosure is arranged in the flow channel in the shell, airflow in the flow channel can be rectified conveniently, and therefore noise in the whole assembly is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to a fan assembly. Background Technology

[0002] Currently, small cleaning appliances such as vacuum cleaners, robot vacuums, floor scrubbers, and handheld vacuums all use fans as a power source to generate suction airflow and clean dust, liquids, mites, and other contaminants from surfaces like floors and beds. However, when users operate these devices, the fan's operation can result in significant noise due to mechanical vibration and airflow disturbances, leading to reduced user comfort. Therefore, we have proposed a noise-reducing fan component to address the aforementioned problems. Utility Model Content

[0003] The purpose of this utility model is to provide a noise-reducing fan assembly to solve the problem mentioned in the background art that existing fans on the market have high operating noise due to mechanical vibration, airflow disturbance and other factors, resulting in low user comfort.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing fan assembly, comprising a housing, a mesh cover and a fan disposed within the housing, the mesh cover being disposed between the housing and the fan, the housing having a housing air inlet and a housing exhaust outlet, the fan having a fan air inlet and a fan air outlet, the housing air inlet and the fan air inlet having a flow channel communicating, the housing exhaust outlet and the fan air outlet having a flow channel communicating, and the mesh cover being disposed within the flow channel between the housing exhaust outlet and the fan air outlet.

[0005] Preferably, the housing air inlet and the housing exhaust outlet are located on the same side of the housing.

[0006] By adopting the above technical solution, and by setting the air inlet and exhaust outlet of the outer casing on the same side, it is convenient to arrange the mesh cover inside the outer casing.

[0007] Preferably, the mesh cover is arranged around the fan.

[0008] By adopting the above technical solution, the fan is surrounded by a mesh cover, thereby reducing the noise of the fan's exhaust air.

[0009] Preferably, the mesh cover includes a first mesh cover and a second mesh cover, which are arranged substantially perpendicularly to each other.

[0010] Preferably, the first mesh cover and the second mesh cover are connected.

[0011] By adopting the above technical solution, the first and second mesh covers are connected roughly vertically, which facilitates the arrangement of the mesh covers inside the outer shell.

[0012] Preferably, the mesh cover has circular mesh holes.

[0013] By adopting the above technical solution, noise reduction is achieved in the air duct through the circular mesh openings on the mesh cover.

[0014] Preferably, the number of exhaust ports on the outer casing is multiple.

[0015] Preferably, the mesh cover covers the entire flow channel between the exhaust port of the housing and the air outlet of the fan.

[0016] By adopting the above technical solution, and by setting multiple exhaust ports on the outer shell and covering the entire flow channel with a mesh cover, it is beneficial to reduce the noise when the airflow is discharged.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the noise reduction fan assembly, by setting a mesh cover in the flow channel between the exhaust port of the outer shell and the air outlet of the fan, facilitates the rectification of the airflow in the flow channel, thereby reducing the noise of the entire assembly. Attached Figure Description

[0018] Figure 1 This is a schematic cross-sectional view of the present utility model; in the figure: 1, outer shell; 2, mesh cover; 21, first mesh cover; 22, second mesh cover; 3, fan; 4, air inlet of outer shell; 5, air outlet of outer shell; 6, air inlet of fan; 7, air outlet of fan; 8, mesh. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to Figure 1Existing fan components often produce significant noise and reduced user comfort due to mechanical vibration and airflow disturbances. To address this issue, this embodiment discloses the following technical content: a housing 1 containing a mesh cover 2 and a fan 3. The mesh cover 2 is positioned between the housing 1 and the fan 3. The housing 1 has an air inlet 4 and an air outlet 5. The fan 3 has an air inlet 6 and an air outlet 7. The air inlet 4 and the air inlet 6 are connected by a flow channel, and the air outlet 5 and the air outlet 7 are connected by a flow channel. The mesh cover 2 is positioned within the flow channel between the air outlet 5 and the air outlet 7. The air inlet 4 and the air outlet 5 are located on the same side of the housing 1, and the mesh cover 2 surrounds the fan 3.

[0021] Example 2: The technical content disclosed in this example is a further improvement on the basis of Example 1 above, which further improves the noise reduction effect of the fan assembly. In order to further solve this technical problem, the following technical content is disclosed in this example: The mesh cover 2 includes a first mesh cover 21 and a second mesh cover 22. The first mesh cover 21 and the second mesh cover 22 are arranged substantially perpendicularly to each other and are connected. The mesh cover 2 is provided with mesh holes 8, which are circular. The mesh cover 2 covers the entire flow channel between the outer shell exhaust port 5 and the fan outlet 7. The number of outer shell exhaust ports 5 is multiple.

[0022] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0023] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A noise-reducing fan assembly, comprising a housing (1), wherein a mesh cover (2) and a fan (3) are disposed within the housing (1), the mesh cover (2) being disposed between the housing (1) and the fan (3), the housing (1) having a housing air inlet (4) and a housing exhaust outlet (5), the fan (3) having a fan air inlet (6) and a fan air outlet (7), the flow channels of the housing air inlet (4) and the fan air inlet (6) being connected, the flow channels of the housing exhaust outlet (5) and the fan air outlet (7) being connected, the mesh cover (2) being disposed within the flow channel between the housing exhaust outlet (5) and the fan air outlet (7), the housing air inlet (4) and the housing exhaust outlet (5) being located on the same side of the housing (1), and the mesh cover (2) being arranged around the fan (3), characterized in that, The mesh cover (2) includes a first mesh cover (21) and a second mesh cover (22).

2. The noise reduction fan assembly according to claim 1, characterized in that: The first mesh cover (21) and the second mesh cover (22) are arranged substantially perpendicularly to each other.

3. The noise reduction fan assembly according to claim 1, characterized in that: The first mesh cover (21) and the second mesh cover (22) are connected.

4. The noise reduction fan assembly according to claim 1, characterized in that: The mesh cover (2) covers the entire flow channel between the outer shell exhaust port (5) and the fan outlet (7).

5. A noise reduction fan assembly according to claim 1, characterized in that: The mesh cover (2) has mesh holes (8), and the mesh holes (8) are circular.

6. The noise reduction fan assembly according to claim 1, characterized in that: The number of exhaust ports (5) on the outer casing is multiple.

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