Spherical air port for household appliance

By introducing rotating and wall-cleaning components into the spherical air outlet, the airflow direction is changed by agitating fan blades, achieving the self-cleaning function of the spherical air outlet. This solves the problems of reduced air delivery efficiency and increased noise caused by dust accumulation, keeping the equipment clean and safe.

CN224470405UActive Publication Date: 2026-07-07HEFEI JINLEI ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI JINLEI ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Over time, the spherical air vents of existing household appliances accumulate dust, oil particles, and fibers, leading to increased surface roughness of the duct, reduced air delivery efficiency, noise generation, and providing a breeding ground for bacteria and mold, resulting in odors and secondary pollution.

Method used

A spherical air outlet including a rotating component and a wall-cleaning component was designed. The wall-cleaning plate is rotated by agitating fan blades. The axial airflow is converted into a circumferential vortex by agitating fan blades at a 45-degree angle, which drives the wall-cleaning plate to rotate at a low speed along the inner wall. Combined with the flexible scraping part, the deposits are peeled off in real time to achieve self-cleaning.

Benefits of technology

The equipment can maintain a smooth inner wall of the air duct without stopping the machine for disassembly and assembly, reducing air resistance and noise, inhibiting the growth of bacteria and mold, reducing the number of disassembly and assembly operations, reducing labor intensity and the risk of seal aging, and solving the problem of secondary pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a spherical air port for household electrical equipment, relate to electrical ventilation subassembly, including connecting cylinder, still include rotating assembly, the rotating assembly includes the top cap of rotation connection in the top of connecting cylinder, the inside of top cap is provided with ventilation groove, the wall cleaning assembly, the wall cleaning assembly includes the locating seat of fixed connection in the inner wall of connecting cylinder, the top fixedly connected with locating column of locating seat, the outside fixedly connected with agitating fan blade of locating column, the one end fixedly connected with wall cleaning board of agitating fan blade away from locating column, the outside rotation is connected in the inner wall of connecting cylinder and ventilation groove of wall cleaning board, such design has realized in the equipment operation process to stop, can complete air duct self -cleaning without disassembly, keeps the inner wall smooth, reduces wind resistance and noise, and inhibits the bacteria and mould breeding, reduces the disassembly frequency, reduces the labor intensity and the sealing aging risk, solves the secondary pollution problem from the source.
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Description

Technical Field

[0001] This utility model relates to electrical ventilation components, and more particularly to a spherical air outlet for household appliances. Background Technology

[0002] A spherical air vent for household appliances is a spherical structural component installed at the air outlet of household appliances such as air conditioners and fresh air systems. Its core consists of a rotatable spherical shell and an internal air guiding component. By rotating the spherical shell at multiple angles, the air outlet direction can be flexibly changed, while the airflow diffusion range can be adjusted by the internal air guiding structure.

[0003] However, due to the continuous curved air duct formed inside the spherical air vent, dust, oil fume particles and fibers in the air will continuously accumulate on the inner wall during long-term use. These deposits increase the surface roughness of the air duct, reduce air supply efficiency and increase noise, and provide a breeding ground for bacteria and mold, resulting in odors and secondary pollution.

[0004] Therefore, this utility model provides a spherical air vent for household appliances. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a spherical air vent for household appliances.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a spherical air vent for household appliances, including a connecting cylinder and a rotating assembly, wherein the rotating assembly includes a top cover rotatably connected to the top of the connecting cylinder, and the top cover has a ventilation groove inside;

[0007] The wall cleaning assembly includes a positioning seat fixedly connected to the inner wall of the connecting cylinder, a positioning column fixedly connected to the top of the positioning seat, an agitator blade fixedly connected to the outer side of the positioning column, and a wall cleaning plate fixedly connected to the end of the agitator blade away from the positioning column.

[0008] In a preferred embodiment, the outer side of the cleaning plate is rotatably connected to the inner wall of the connecting cylinder and the ventilation slot.

[0009] In a preferred embodiment, a rotating ring is rotatably connected to the bottom outer side of the ventilation slot, and the bottom end of the rotating ring is rotatably connected to the top end of the connecting cylinder.

[0010] In a preferred embodiment, the cleaning plate is provided with a flexible scraping part on the side near the inner wall of the connecting cylinder.

[0011] In a preferred embodiment, the blade surface of the agitator fan forms a 45-degree angle with the axis of the positioning column.

[0012] In a preferred embodiment, the rotating ring and the top of the connecting cylinder form a rotatable sealing fit through an annular groove.

[0013] In a preferred embodiment, the ventilation slots are evenly distributed circumferentially on the top cover, and the width of the ventilation slots gradually increases from the inside to the outside.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] This invention utilizes the principle that the agitating fan blades, impacted by axial airflow, drive the cleaning plate to rotate. The agitating fan blades are tilted at a 45-degree angle to the axial direction, converting part of the straight airflow into a circumferential swirling flow. This drives the cleaning plate to rotate at a low speed along the inner wall, while the flexible scraping part peels off deposits in real time. This design enables the air duct to self-clean without stopping the machine or disassembling the equipment during operation, keeping the inner wall smooth, reducing wind resistance and noise, inhibiting the growth of bacteria and mold, reducing the number of disassembly and assembly, reducing labor intensity and the risk of seal aging, and solving the problem of secondary pollution at the source. Attached Figure Description

[0016] Figure 1 A perspective view of a spherical air vent for a household appliance provided by this utility model;

[0017] Figure 2 A schematic diagram of a ventilation slot structure for a spherical air vent used in household appliances, provided by this utility model;

[0018] Figure 3 A schematic diagram of the wall cleaning component structure of a spherical air vent for household appliances provided by this utility model;

[0019] Figure 4 A schematic diagram of the wall-cleaning panel structure for a spherical air vent for household appliances provided by this utility model;

[0020] Figure 5 for Figure 3 Enlarged view of point A in the image.

[0021] Legend:

[0022] 1. Connecting cylinder;

[0023] 2. Rotating assembly; 21. Top cover; 22. Ventilation slot; 23. Rotating ring;

[0024] 3. Cleaning assembly; 31. Positioning seat; 32. Positioning column; 33. Agitator blade; 34. Cleaning plate. Detailed Implementation

[0025] 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.

[0026] like Figure 1 , Figure 2 and Figure 5 As shown, this embodiment provides a technical solution: a spherical air outlet for household appliances, including a connecting cylinder 1 and a rotating component 2. The rotating component 2 includes a top cover 21 rotatably connected to the top of the connecting cylinder 1. A ventilation groove 22 is provided inside the top cover 21. A rotating ring 23 is rotatably connected to the bottom outer side of the ventilation groove 22. The bottom end of the rotating ring 23 is rotatably connected to the top of the connecting cylinder 1. The rotating ring 23 and the top of the connecting cylinder 1 form a rotatable sealing fit through an annular sliding groove. The ventilation grooves 22 are evenly distributed circumferentially on the top cover 21, and the width of the ventilation grooves 22 gradually increases from the inside to the outside.

[0027] The connecting cylinder 1 serves as a transition section between the air outlet and the internal air duct of the household appliance, acting as a connection. The top cover 21 constitutes the terminal part of the air outlet. Through its designed rotation function, the air outlet direction can be flexibly changed, thereby realizing the universal adjustment of the spherical air outlet. The ventilation slots 22 are evenly distributed around the circumference of the connecting cylinder 1, ensuring the uniformity of air outlet in the 360-degree circumferential direction, allowing air to flow smoothly from all directions and avoiding the problem of concentrated or uneven airflow. The combination design of the rotating ring 23 and the annular sliding groove forms a rotatable sealing pair between the top cover 21 and the connecting cylinder 1. This design not only ensures that the top cover 21 can rotate freely in the circumference to achieve flexible adjustment of the air outlet direction, but also effectively blocks the backflow of air.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown, the wall cleaning assembly 3 includes a positioning seat 31 fixedly connected to the inner wall of the connecting cylinder 1. A positioning column 32 is fixedly connected to the top of the positioning seat 31. An agitator blade 33 is fixedly connected to the outer side of the positioning column 32. A wall cleaning plate 34 is fixedly connected to the end of the agitator blade 33 away from the positioning column 32. The outer side of the wall cleaning plate 34 is rotatably connected to the inner wall of the connecting cylinder 1 and the ventilation slot 22. A flexible scraping part is provided on the side of the wall cleaning plate 34 near the inner wall of the connecting cylinder 1. The blade surface of the agitator blade 33 forms a 45-degree inclination angle with the axis of the positioning column 32.

[0029] The positioning seat 31 provides a solid fixing point for the wall cleaning assembly 3, ensuring that no resonance occurs between the agitator blade 33 and the wall cleaning plate 34 under the action of high-speed airflow. The positioning column 32 acts as the rotation axis of the agitator blade 33, ensuring not only the stable rotation of the agitator blade 33, but also transmitting the vibration energy generated by the positioning seat 31 during operation downwards, thereby effectively reducing the shaking of the top cover 21. The tilt angle design of the agitator blade 33 converts the axial airflow into a circumferential swirling flow. This design not only improves the utilization efficiency of the airflow, but also drives the wall cleaning plate 34 to rotate at a low speed. Driven by the agitator blade 33, the wall cleaning plate 34 rotates along the inner wall of the cylinder wall and the ventilation slot 22, peeling off the dust attached to the inner wall in real time, greatly reducing the number of times the user needs to disassemble the machine for wiping, thereby improving the user experience and satisfaction.

[0030] Working principle:

[0031] like Figure 1 - Figure 5 As shown:

[0032] In use: First, the air duct system inside the household appliance outputs an axial airflow. This airflow first enters a specific connecting cylinder 1. Then, this airflow impacts and agitates the agitator blade 33 located inside the connecting cylinder 1. Since there is a 45° angle between the blade surface of the agitator blade 33 and the axis of the positioning post 32, the axial airflow is partially converted into a circumferential vortex after impacting the agitator blade 33. This circumferential vortex can effectively drive the agitator blade 33 to rotate at a low speed around the positioning post 32. When the agitator blade 33 starts to rotate, it will drive the cleaning plate 34 fixed to it to rotate synchronously along the inner wall of the connecting cylinder 1 and the inner wall of the ventilation slot 22. The cleaning plate 34 is equipped with flexible scraping parts, which can peel off the dust attached to the inner wall in real time.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A spherical air vent for household appliances, comprising a connecting cylinder (1), characterized in that, It also includes a rotating assembly (2), which includes a top cover (21) rotatably connected to the top of the connecting cylinder (1), and the top cover (21) has a ventilation slot (22) inside; The wall cleaning assembly (3) includes a positioning seat (31) fixedly connected to the inner wall of the connecting cylinder (1), a positioning column (32) fixedly connected to the top of the positioning seat (31), an agitator (33) fixedly connected to the outer side of the positioning column (32), and a wall cleaning plate (34) fixedly connected to the end of the agitator (33) away from the positioning column (32).

2. The spherical air vent for household appliances according to claim 1, characterized in that: The outer side of the cleaning plate (34) is rotatably connected to the inner wall of the connecting cylinder (1) and the ventilation slot (22).

3. The spherical air vent for household appliances according to claim 1, characterized in that: The bottom outer side of the ventilation slot (22) is rotatably connected to a rotating ring (23), and the bottom end of the rotating ring (23) is rotatably connected to the top of the connecting cylinder (1).

4. The spherical air vent for household appliances according to claim 2, characterized in that: The cleaning plate (34) has a flexible scraping part on the side near the inner wall of the connecting cylinder (1).

5. A spherical air vent for household appliances according to claim 2, characterized in that: The blade surface of the agitator (33) forms a 45-degree angle with the axis of the positioning post (32).

6. A spherical air vent for household appliances according to claim 3, characterized in that: The rotating ring (23) and the top of the connecting cylinder (1) form a rotatable sealed fit through an annular groove.

7. A spherical air vent for household appliances according to claim 1, characterized in that: The ventilation slots (22) are evenly distributed circumferentially on the top cover (21), and the width of the ventilation slots (22) gradually increases from the inside to the outside.