A wind turbine structure and an air purifier

By using a double-layer blade structure and a symmetrical air intake and exhaust design, the problem of insufficient air supply capacity and low purification efficiency in existing air purifiers is solved, achieving efficient and stable air circulation and purification effect.

CN224432889UActive Publication Date: 2026-06-30NINGBO TALLER ELECTRICAL APPLIANCE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO TALLER ELECTRICAL APPLIANCE CO LTD
Filing Date
2025-06-05
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing air purifiers have problems with their impeller structure design, such as limited air delivery capacity, uneven airflow output, high wind resistance, and unreasonable air inlet and outlet structures, resulting in low purification efficiency.

Method used

The impeller features a double-layer blade structure with blades tilted in the same direction and staggered. Combined with an arc-shaped air outlet channel and symmetrical air inlet surface, the impeller body and filter compartment fit together tightly to achieve bidirectional synchronous air intake and centralized air outlet.

Benefits of technology

It significantly improves the air delivery capacity and purification efficiency of air purifiers, reduces eddy current losses, and enhances the orderliness of airflow organization and overall machine performance.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses a fan wheel structure and an air purifier. The fan wheel body has air inlet surfaces at both ends and two layers of air outlet surfaces on its lateral circumferential surface. Each layer consists of blades evenly distributed circumferentially, with adjacent blades forming an air outlet channel. The upper and lower blades are tilted in the same direction and staggered, so that the upper blades overlap the lower air outlet channel axially, improving airflow continuity and volume. The air purifier includes two opposing filter compartments, with an air inlet screen on the outer surface, a filter screen inside, and an air outlet screen on the side. The fan wheel body is located in the inner cavity, with its two air inlet surfaces corresponding to the filter compartments, and its air outlet surfaces facing the air outlet screens. The double-layer air outlet structure combined with the staggered blade design significantly improves air delivery capacity and efficiency; the symmetrical air inlet and outlet layout enhances the rationality of airflow organization and improves purification efficiency; the overall structure is compact, operates stably and with low noise, and is suitable for various air purification scenarios.
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Description

Technical Field

[0001] This utility model belongs to the technical field of air purification equipment, specifically relating to a fan structure and an air purifier. Background Technology

[0002] As people pay increasing attention to indoor air quality, air purifiers have become an important household appliance for improving living environment and enhancing health. During the operation of an air purifier, the efficiency of airflow guidance and delivery directly affects its purification effect and operating energy consumption. Among them, the impeller, as the core component for realizing air circulation inside the air purifier, plays a key role in the overall performance of the machine due to its structural design.

[0003] Currently, most air purifiers use single-layer blade impellers, which have limited air delivery capacity and make it difficult to achieve efficient and uniform airflow output. In addition, some impeller structures lack optimized design in blade layout, resulting in poor airflow and high wind resistance, which in turn affects the overall air delivery efficiency.

[0004] Meanwhile, in terms of the overall air intake and exhaust structure layout of air purifiers, traditional designs often have problems such as unreasonable placement of air intake and exhaust ports, complex air duct paths, or mismatched airflow channels, resulting in poor airflow circulation and even local eddies or dead zones, which further reduces air purification efficiency. Summary of the Invention

[0005] This invention addresses the aforementioned problems in the existing technology by proposing a wind turbine structure and an air purifier that can improve air purification efficiency.

[0006] This utility model can be achieved through the following technical solutions:

[0007] A wind turbine structure, comprising:

[0008] The wind turbine body has two end faces that are connected along the axial direction and are respectively set as air inlet faces;

[0009] The wind turbine body has a double-layered air outlet surface on its lateral circumferential surface. Each layer of the air outlet surface is composed of multiple blades evenly distributed along the circumference, and air outlet channels are formed between adjacent blades.

[0010] The blades in the upper and lower layers are tilted in the same direction;

[0011] The blades in the upper and lower layers are staggered, so that the installation position of the upper blades and the position of the lower air outlet channel overlap in axial projection.

[0012] As a further improvement of this utility model, a partition plate is provided between the upper and lower air outlet surfaces, the air inlet surface located at the top of the impeller body is connected to the air outlet surface located in the upper layer, and the air inlet surface located at the bottom of the impeller body is connected to the air outlet surface located in the lower layer.

[0013] As a further improvement of this utility model, a connecting part is provided at the central axis position of the partition plate, and the connecting part is used to connect with the output shaft of the drive motor.

[0014] As a further improvement of this utility model, the blades are arranged in an arc shape so that the air outlet channel extends along the arc direction.

[0015] As a further improvement of this utility model, the air inlet surface is provided with a convex mounting guide surface, and the mounting guide surface is set as an arc surface.

[0016] An air purifier is also provided, which is equipped with the above-mentioned impeller structure, including:

[0017] An air purifier body includes two filter compartments arranged opposite to and connected to each other. An air inlet screen is provided on the outer surface of the filter compartment, a filter screen is provided inside the filter compartment, and an air outlet screen is provided at the side connection surface of the two filter compartments.

[0018] The impeller body is disposed in the inner cavity formed by the filter chamber and the air outlet screen, and the two air inlet surfaces of the impeller body are disposed facing the two filter chambers, and the air outlet surface of the impeller body is disposed facing the air outlet screen.

[0019] As a further improvement of this utility model, the inner wall of the filter compartment is provided with a ventilation surface, and the air inlet surface of the impeller body is connected to the ventilation surface.

[0020] As a further improvement of this utility model, the ventilation surface is recessed in the direction of the inner cavity of the filter compartment, and an annular groove is provided on the outer edge of the ventilation surface. The mounting guide surface of the impeller body is embedded in the annular groove so that the ventilation surface is only connected to the air inlet surface of the impeller body.

[0021] As a further improvement of this utility model, one of the ventilation surfaces is provided with a protruding motor mounting seat, the motor mounting seat is used to install the drive motor, and the motor mounting seat extends into the air inlet cavity of the impeller body.

[0022] As a further improvement of this utility model, at least one impeller body is provided in the air purifier body, and when there are multiple impeller bodies, adjacent impeller bodies are separated by partitions.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Dual-layer air supply structure to improve air volume output: The design of two independent air outlet surfaces at the top and bottom layers allows the impeller to output a larger air volume at the same rotation speed, significantly improving the overall air supply capacity of the air purifier.

[0025] 2. Staggered blade arrangement improves air supply efficiency: The axial projections of the upper blades and the lower air outlet channel overlap, achieving spatial complementarity of airflow paths, reducing eddy current losses, and improving air supply efficiency.

[0026] 3. Unified tilt direction enhances airflow guidance: Unified tilt direction of blades helps to form a unified air outlet direction, reduce energy loss, and improve the orderliness of airflow organization.

[0027] 4. Symmetrical air intake structure improves air intake efficiency: The two air intake surfaces of the impeller body face the two filter compartments respectively, realizing bidirectional synchronous air intake and significantly improving the air handling capacity per unit time.

[0028] 5. The impeller body and the filter compartment fit together tightly to reduce air leakage: Through reasonable layout, the air inlet surface of the impeller body is effectively connected with the internal space of the filter compartment, which prevents untreated air from directly entering the impeller body and improves purification efficiency.

[0029] 6. Centralized air outlet design enhances air delivery capacity: The air outlet is oriented towards the air outlet mesh, combined with the double-layer arc blade structure of the impeller itself, so that the purified air is concentrated and output with higher wind speed and pressure, improving the overall air delivery performance of the unit.

[0030] 7. Compact structure, easy to integrate and maintain: The filter compartment adopts a symmetrical connection method, with the impeller body placed in its central inner cavity. The overall structure is compact and beautiful, and at the same time, it is easy to replace the filter and perform daily maintenance. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the wind turbine body of this utility model;

[0032] Figure 2 This is a schematic diagram of the air inlet and air outlet surfaces of the wind turbine body of this utility model;

[0033] Figure 3 This is a partial structural schematic diagram of the air purifier body of this utility model;

[0034] Figure 4 This is a cross-sectional view of the air purifier body of this utility model.

[0035] In the diagram, 100 is the wind turbine body; 110 is the air inlet surface; 111 is the installation guide surface; 120 is the air outlet surface; 121 is the blade; 122 is the air outlet duct; 130 is the partition plate; and 131 is the connecting part.

[0036] 200. Air purifier body; 210. Filter compartment; 211. Filter; 212. Ventilation surface; 213. Annular groove; 214. Motor mounting bracket; 220. Air inlet screen; 230. Air outlet screen; 240. Drive motor. Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0038] like Figures 1-2 As shown, this utility model provides a wind turbine structure, including:

[0039] The wind turbine body 100 has two end faces that are connected along the axial direction and are respectively set as air inlet faces 110;

[0040] The wind turbine body 100 has a double-layered air outlet surface 120 on its lateral circumferential surface. Each air outlet surface 120 is composed of multiple blades 121 evenly distributed along the circumference. An air outlet channel 122 is formed between adjacent blades 121.

[0041] The upper and lower blades 121 are tilted in the same direction, which allows the airflow to be discharged smoothly in a uniform direction during rotation, thus improving the air outlet efficiency.

[0042] The upper and lower layers of blades 121 are staggered, so that the installation position of the upper layer blade 121 and the position of the lower layer air outlet duct 122 overlap in axial projection.

[0043] Specifically, when the drive motor 240 drives the wind turbine body 100 to rotate at high speed, air is simultaneously drawn in from the top and bottom air inlet surfaces 110 of the wind turbine body 100 and enters the upper and lower independent air duct systems respectively. During this process, because the blades 121 are evenly distributed circumferentially and have a certain angle, under the centrifugal force and the guidance of the blades 121, the air is accelerated and discharged outward along the air outlet channel 122.

[0044] Meanwhile, since the upper and lower blades 121 are staggered and the position of the upper blade 121 overlaps with the lower air outlet channel 122 in axial projection, the airflow of the upper and lower layers complements each other in space, effectively utilizing the circumferential space of the impeller body 100 and improving the air delivery capacity per unit volume.

[0045] It is worth mentioning that the design of the wind turbine body 100 structure has brought at least the following beneficial effects:

[0046] 1. Dual-layer air supply structure to improve air volume output: The design of two independent air outlet surfaces of 120° allows the impeller body of 100° to output a larger air volume at the same rotation speed, significantly improving the overall air supply capacity of the air purifier.

[0047] 2. The staggered arrangement of blades 121 improves air supply efficiency: The axial projections of the upper blades 121 and the lower air outlet duct 122 overlap, achieving spatial complementarity of airflow paths, reducing eddy current losses, and improving air supply efficiency.

[0048] 3. Unified tilt direction enhances airflow guidance: The unified tilt direction of blades 121 helps to form a unified air outlet direction, reduce energy loss, and improve the orderliness of airflow organization.

[0049] Preferably, a partition plate 130 is provided between the upper and lower air outlet surfaces 120. The air inlet surface 110 at the top of the impeller body 100 is connected to the upper air outlet surface 120, and the air inlet surface 110 at the bottom of the impeller body 100 is connected to the lower air outlet surface 120. This structural design realizes the function of independent air inlet and independent air outlet of the upper and lower layers without interference, effectively improving the air volume output. At the same time, the partition plate 130 isolates the airflow between the upper and lower layers, further reducing internal turbulence and enhancing the air delivery efficiency.

[0050] Preferably, a connecting part 131 is provided at the central axis position of the partition plate 130. The connecting part 131 is used to connect with the output shaft of the drive motor 240, so that the wind turbine body 100 can be driven to rotate by the drive motor 240.

[0051] Preferably, the blades 121 are arranged in an arc shape so that the air outlet channel 122 extends in an arc direction. The purpose is to better match the natural flow trajectory of the airflow in the rotating state. The curvature of the arc blades 121 can adapt to the airflow trajectory, so that the air flows out more smoothly along the guide direction of the blades 121, reducing the separation and impact loss of the airflow in the channel, thereby improving the air outlet speed and air pressure.

[0052] Preferably, the air inlet surface 110 is provided with an outwardly protruding installation guide surface 111. The installation guide surface 111 is set as an arc surface. Its main purpose is to play a positioning and guiding role during the assembly process, while improving the sealing performance between the impeller body 100 and the internal air duct of the air purifier, ensuring that air can only enter from the air inlet surface 110 of the impeller body 100, avoiding bypass air leakage, and improving the airflow control capability of the whole machine.

[0053] like Figures 3-4 As shown, this utility model also provides an air purifier, which is equipped with the above-mentioned impeller structure, including:

[0054] The air purifier body 200 includes two filter compartments 210 that are arranged opposite to each other and connected. An air inlet screen 220 is provided on the outer surface of the filter compartment 210, a filter screen 211 is provided inside the filter compartment 210, and an air outlet screen 230 is provided at the side connection surface of the two filter compartments 210.

[0055] The impeller body 100 is disposed in the inner cavity formed by the filter chamber 210 and the air outlet screen 230, and the two air inlet surfaces 110 of the impeller body 100 are set towards the two filter chambers 210, and the air outlet surface 120 of the impeller body 100 is set towards the air outlet screen 230.

[0056] Its working principle is as follows: When the drive motor 240 drives the impeller body 100 to rotate, the impeller body 100 simultaneously draws in filtered air from the filter chambers 210 on both sides through the air inlet surfaces 110 at both ends. Since the impeller body 100 adopts a double-layer air outlet structure and is combined with the arc blade 121 design, the air is efficiently accelerated under the action of centrifugal force and evenly discharged to the air outlet area 230 through the circumferentially distributed air outlet surfaces 120. The purified air is then concentrated and sent out to achieve indoor air circulation and purification.

[0057] The air intake and exhaust structure design of this air purifier has at least the following beneficial effects:

[0058] 1. Symmetrical air intake structure improves air intake efficiency: The two air intake surfaces 110 of the impeller body 100 face the two filter chambers 210 respectively, realizing bidirectional synchronous air intake and significantly improving the air handling capacity per unit time.

[0059] 2. The impeller body 100 and the filter chamber 210 are closely matched to reduce air leakage loss: Through reasonable layout, the air inlet surface 110 of the impeller body 100 is effectively connected with the internal space of the filter chamber 210, avoiding the direct entry of untreated air into the impeller body 100 and improving purification efficiency.

[0060] 3. Centralized air outlet design to enhance air delivery capacity: The air outlet surface 120 is set to face the air outlet net 230. Combined with the double-layer arc blade 121 structure of the impeller body 100 itself, the purified air is concentrated and output with higher wind speed and pressure, which improves the overall air delivery performance of the unit.

[0061] 4. Compact structure, easy to integrate and maintain: The filter compartment 210 adopts a symmetrical connection method, with the impeller body 100 placed in its central inner cavity. The overall structure is compact and beautiful, and at the same time, it is convenient for filter replacement and daily maintenance.

[0062] In summary, this air purifier structure, through optimizing the impeller body 100 structure and air inlet / outlet layout, achieves comprehensive performance advantages of efficient air intake, stable air delivery, and low-noise operation, providing a practical solution for the technological upgrade of air purification equipment.

[0063] Preferably, the inner wall of the filter chamber 210 is provided with a ventilation surface 212, and the air inlet surface 110 of the impeller body 100 is connected to the ventilation surface 212. The ventilation surface 212 is recessed in the direction of the inner cavity of the filter chamber 210, and the outer edge of the ventilation surface 212 is provided with an annular groove 213. The mounting guide surface 111 of the impeller body 100 is embedded in the annular groove 213, so that the ventilation surface 212 is only connected to the air inlet surface 110 of the impeller body 100.

[0064] It is worth mentioning that the ventilation surface 212, as an important connection and transition area between the filter chamber 210 and the impeller body 100, has a concave structure that helps to reduce the flow distance of airflow from the filter 211 to the impeller body 100, reduce eddies and dead zones, and improve the uniformity and efficiency of the intake airflow. The annular groove 213 provided on the outer edge of the ventilation surface 212 is used to accommodate the installation guide surface 111 (i.e. the convex arc surface) of the impeller body 100, forming a close-fitting assembly relationship.

[0065] This combination method not only ensures the stability and alignment of the wind turbine body 100 installation, but also effectively prevents air from leaking or bypassing into the wind turbine body 100 from the non-air intake surface 110 position, achieving precise control of "only drawing in from the designated air intake surface 110".

[0066] Preferably, one of the ventilation surfaces 212 is provided with a protruding motor mounting base 214, which is used to install a drive motor 240. The motor mounting base 214 extends into the air inlet cavity of the impeller body 100. Since the motor mounting base 214 is located inside the ventilation surface 212 and communicates with the air inlet cavity of the impeller body 100, the arrangement of the drive motor 240 does not occupy additional external space of the air purifier, thus improving the overall structural compactness of the machine.

[0067] Preferably, at least one impeller body 100 is provided in the air purifier body 200. When there are multiple impeller bodies 100, adjacent impeller bodies 100 are separated by partitions.

[0068] This solution provides a modular impeller body 100 structure layout that allows for flexible configuration of air delivery capacity according to air purification needs. One or more impeller bodies 100 can be installed inside the air purifier to meet different space volume, purification efficiency and air volume requirements.

[0069] When multiple wind turbine bodies 100 are connected in parallel, by setting baffles between adjacent wind turbine bodies 100, airflow isolation and independent operation between each wind turbine body 100 can be achieved, thereby improving the stability and controllability of the overall air supply.

[0070] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

[0071] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0072] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0073] The technical solutions of the various embodiments of this utility model can be combined with each other, but only if they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0074] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A wind wheel structure, characterized by, include: The wind turbine body has two end faces that are connected along the axial direction and are respectively set as air inlet faces; The wind turbine body has a double-layered air outlet surface on its lateral circumferential surface. Each layer of the air outlet surface is composed of multiple blades evenly distributed along the circumference, and air outlet channels are formed between adjacent blades. The blades in the upper and lower layers are tilted in the same direction; The upper and lower layers of blades are staggered, so that the installation position of the upper layer of blades and the position of the lower layer of air outlet channel overlap in axial projection. The air inlet surface is provided with a convex mounting guide surface, which is set as an arc surface.

2. A wind wheel structure according to claim 1, wherein A partition plate is provided between the upper and lower air outlet surfaces. The air inlet surface located at the top of the impeller body is connected to the air outlet surface located on the upper layer, and the air inlet surface located at the bottom of the impeller body is connected to the air outlet surface located on the lower layer.

3. A wind wheel structure according to claim 2, wherein The partition plate has a connecting part at the central axis position, which is used to connect to the output shaft of the drive motor.

4. A wind wheel structure according to claim 1, wherein The blades are arranged in an arc shape so that the air outlet channel extends along the arc direction.

5. An air cleaner, which is installed with the wind wheel structure according to any one of claims 1 to 4, characterized in that, include: An air purifier body includes two filter compartments arranged opposite to and connected to each other. An air inlet screen is provided on the outer surface of the filter compartment, a filter screen is provided inside the filter compartment, and an air outlet screen is provided at the side connection surface of the two filter compartments. The impeller body is disposed in the inner cavity formed by the filter compartment and the air outlet screen, and the two air inlet surfaces of the impeller body are disposed facing the two filter compartments, and the air outlet surface of the impeller body is disposed facing the air outlet screen.

6. The air cleaner of claim 5, wherein The inner wall of the filter compartment is provided with a ventilation surface, and the air inlet surface of the impeller body is connected to the ventilation surface.

7. The air cleaner of claim 6, wherein The ventilation surface is recessed inward toward the inner cavity of the filter compartment, and an annular groove is provided on the outer edge of the ventilation surface. The mounting guide surface of the impeller body is embedded in the annular groove so that the ventilation surface is only connected to the air inlet surface of the impeller body.

8. The air cleaner of claim 6, wherein, One of the ventilation surfaces is provided with a protruding motor mounting base, which is used to install the drive motor and extends into the air inlet cavity of the impeller body.

9. The air cleaner of claim 5, wherein, At least one impeller body is provided in the air purifier body. When there are multiple impeller bodies, adjacent impeller bodies are separated by partitions.