Motor, wind wheel and rotor integrated structure and air purifier

By integrating the motor, fan, and rotor into a single structure and using a convenient snap-fit ​​design, the problem of large size and inconvenient filter replacement in air purifiers has been solved, achieving a compact structure and easy replacement.

CN223621844UActive Publication Date: 2025-12-02GUANGDONG CHANGJINCHENG INTELLIGENT MFG CO LTD
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Patent Information

Application Number
CN202423231609.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-12-02
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

The existing air purifiers have motors and fans that occupy a large axial space, resulting in large equipment size and inconvenient filter replacement.

Method used

It adopts an integrated structure of motor, fan, and rotor. The design of the rotating fan saves axial space and improves the airflow effect by utilizing the curvature of the fan blades. At the same time, it is designed with easy-to-disassemble snap-fit ​​parts to achieve quick replacement of filter components.

Benefits of technology

The device features a compact design and easy filter replacement, improving air purification efficiency and ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of air purifiers, in particular to a motor, wind wheel and rotor integrated structure and an air purifier, the motor, wind wheel and rotor integrated structure is applied to an air purifier body, an induced draft fan is arranged in the air purifier body, and the induced draft fan comprises a base. A rotating shaft is rotatably inserted in the center of the base through a bearing, the tail end of the rotating shaft is connected with a rotating fan, a filling groove is formed in the connecting position of the rotating shaft and the rotating fan, the filling groove is filled with an adhesive, and the rotating fan is connected with the rotating shaft through in-film injection molding rubber coating. According to the utility model, the rotating fan and other parts are arranged, the lower part of the rotating fan is in the shape of the flat-top cone, the upper part of the flat-top cone is connected with the rotating shaft, and the lower part of the flat-top cone wraps the stator, so that the axial space can be saved, and the volume of the whole device is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of air purifiers, and in particular to an integrated structure of motor, fan, and rotor, and an air purifier thereof. Background Technology

[0002] An air purifier is a device used to clean harmful substances, pollutants, and toxic gases from the air. It is widely used in homes, offices, hospitals, industrial, and commercial environments. Through various technologies and filter materials, it removes harmful substances such as dust, smoke, and pollen from the air, thus providing a fresh and healthy air environment. An air purifier generally consists of a filter assembly and a fan assembly. It draws indoor air into the device via a built-in fan, removes particulate matter, harmful gases, and pollutants through multiple layers of filtration, and finally discharges the treated air into the room, thus improving indoor air quality.

[0003] However, existing air purifiers, such as the plasma dehumidifying air purifier disclosed in patent application CN118517742A, change the flow direction of gas entering the casing through the cooperation of transmission and filter components. This alters the adhesion position of dust to the filter element and shakes the filter screen, changing the location of dust particles on the filter surface. This prevents impurities from covering the filter screen, extending its lifespan and improving both cleaning and air purification efficiency. However, the air intake structure formed by the motor and fan requires significant axial space to accommodate these components, resulting in a large device size, a less compact structure, and inconvenient filter replacement. Therefore, this invention proposes an integrated motor-fan-rotor structure and an air purifier to solve the aforementioned technical problems. Utility Model Content

[0004] In order to overcome the technical problems mentioned in the background art, this utility model provides an integrated structure of motor, fan, and rotor, and an air purifier.

[0005] The technical solution is as follows: An integrated structure of motor, fan, and rotor is applied to the body of an air purifier. The air purifier body contains an exhaust fan, which includes a base. A rotating shaft is rotatably inserted into the center of the base via a bearing. A rotating fan is connected to the end of the rotating shaft. A filling groove is provided at the connection between the rotating shaft and the rotating fan. The filling groove is filled with adhesive. The rotating fan is connected to the rotating shaft via in-mold injection molding. A groove is provided at the lower part of the rotating fan. A buffer is provided in the groove. A stator is fitted on the base, and the stator is located between the rotating fan and the base.

[0006] The lower part of the rotating fan is flat-topped and conical, the upper part of the rotating fan is cylindrical and used for air outlet, and the middle part of the rotating fan has fan blades for drawing air.

[0007] Furthermore, the fan blades have a certain curvature.

[0008] Furthermore, the adhesive is a resin.

[0009] This utility model also provides an air purifier, wherein an air inlet is provided on the lower part of the outer wall of the air purifier body, and a top cover is threadedly connected to the upper part of the air purifier body. An air outlet grille is provided on the top cover. A filter component is installed inside the air purifier body, and an exhaust fan is installed in the center of the air purifier body. The exhaust fan is located in the middle of the filter component. A cover plate is installed inside the air purifier body through a snap-fit ​​component. The bottom surface of the cover plate is sealed to the top surface of the filter component. The cover plate cooperates with the rotating fan, so that the air flows according to the guidance of the fan blades.

[0010] Furthermore, the upper cover is provided with corrugated protrusions to facilitate rotation of the upper cover.

[0011] Furthermore, a rotating handle is rotatably connected to the top surface of the cover plate.

[0012] Furthermore, the snap-fit ​​component includes snap-fit ​​plates distributed and fixed to the bottom surface of the cover plate, a fixing plate fixedly connected inside the air purifier body, snap-fit ​​blocks symmetrically rotatably connected to the fixing plate, elastic elements provided on the side of the two snap-fit ​​blocks that are far apart from each other, a circular protrusion provided at the lower part of the snap-fit ​​plate, and an annular groove that mates with the protrusion provided on the side of the snap-fit ​​blocks that are close to each other.

[0013] This utility model has the following advantages:

[0014] 1. This utility model includes components such as a rotating fan. The lower part of the rotating fan is a flat-topped cone, and the upper part of the flat-topped cone is connected to the rotating shaft. The lower part of the flat-topped cone encloses the stator, thus saving axial space and reducing the overall size of the device. The middle part of the rotating fan has fan blades for drawing air, and the fan blades have a certain curvature, which makes the air drawing effect better. The upper part of the rotating fan is cylindrical for air outlet. When the stator coil is energized, it drives the rotating shaft to rotate, and then the rotating shaft drives the rotating fan to rotate. Because the lower part of the rotating fan is a flat-topped cone, the rotating fan will generate a negative pressure around the stator when it rotates, which will dissipate the heat generated by the stator. Then, the fan blades will carry away the heat, thus realizing the self-heating of the fan.

[0015] 2. This utility model is equipped with an air purifier. When the filter needs to be replaced, rotate the top cover to remove it. Then, grasp the handle and lift it upwards. Since the cover is connected to the air purifier body through a snap-fit ​​component, the cover can be removed. At the same time, since the threaded protrusion of the top cover is located on the outer wall, the thread will not obstruct the removal of the cover, thus allowing the filter to be replaced. This makes it convenient and quick to replace the filter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the integrated structure of the motor, wind turbine, and rotor of this utility model.

[0017] Figure 2 This is a cross-sectional view of the integrated structure of the motor, wind turbine, and rotor of this utility model.

[0018] Figure 3 For the present utility model Figure 2 Enlarged view of point A.

[0019] Figure 4 This is a schematic diagram of the air purifier of this utility model.

[0020] Figure 5 This is a cross-sectional view of the air purifier of this utility model.

[0021] Figure 6 This is a schematic diagram of the snap-fit ​​component of this utility model.

[0022] In the attached diagram, the following labels are used: 101: Air purifier body; 1011: Air inlet; 102: Top cover; 1021: Corrugated protrusion; 103: Air outlet grille; 104: Filter component; 105: Exhaust fan; 106: Cover plate; 107: Rotating handle; 108: Snap-fit ​​component; 201: Base; 202: Rotating fan; 2021: Fan blade; 2022: Cylindrical shape; 2023: Groove; 2024: Flat-top conical shape; 203: Rotating shaft; 2031: Filling groove; 204: Stator; 205: Bearing; 206: Buffer component; 301: Clamping plate; 302: Fixing plate; 303: Clamping block; 304: Elastic component. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0024] An integrated structure of motor, wind turbine, and rotor, such as Figures 1-6As shown, this is applied to the air purifier body 101. An exhaust fan 105 is installed inside the air purifier body 101. The exhaust fan 105 includes a base 201. A rotating shaft 203 is rotatably inserted into the center of the base 201 via a bearing 205. The bearing 205 is mounted on the base 201. A rotating fan 202 is connected to the end of the rotating shaft 203. A filling groove 2031 is provided at the connection between the rotating shaft 203 and the rotating fan 202. The filling groove 2031 is filled with an adhesive, which is resin. The rotating fan 202 is connected to the rotating shaft 203 via in-mold injection molding. This enhances the structural stability of the connection between the shaft 203 and the rotating fan 202, ensuring that they do not loosen or detach during rotation. A groove 2023 is provided at the lower part of the rotating fan 202, and a buffer 206, which is a spring, is installed inside the groove 2023. The buffer 206 is sleeved on the outside of the shaft 203, and its two ends are respectively fixed to the inner ring of the bearing 205 and the rotating fan 202. Thus, when the rotating fan 202 is running, the vibration caused by the tail of the rotating fan 202 is reduced, improving stability. Simultaneously, because the buffer 206 is in the groove... Within 2023, the movement space of the buffer 206 is limited, reducing some noise. A stator 204 is fitted onto the base 201, located between the rotating fan 202 and the base 201. The lower part of the rotating fan 202 is a flat-topped conical shape 2024, the upper part of which is connected to the rotating shaft 203, and the lower part of which encloses the stator 204. This saves axial space and reduces the overall size of the device. The middle part of the rotating fan 202 has fan blades 2021 for drawing air, and the fan blades 2021 have a certain... The curvature of the fan improves airflow. The upper part of the rotating fan 202 is cylindrical (2022) for air outlet. When the coil of the stator 204 is energized, it drives the rotating shaft 203 to rotate, which in turn drives the rotating fan 202 to rotate. Since the lower part of the rotating fan 202 is flat-topped conical (2024), the rotation of the rotating fan 202 creates a negative pressure around the stator 204, which dissipates the heat generated by the stator 204. The heat is then carried away by the fan blades (2021), thus achieving heat dissipation for the fan 105.

[0025] An air purifier, such as Figure 1-6As shown, an air inlet 1011 is provided on the lower part of the outer wall of the air purifier body 101. A top cover 102 is threadedly connected to the upper part of the air purifier body 101, with a threaded protrusion located on the outer wall of the top cover 102. The top cover 102 has a corrugated protrusion 1021 for easy rotation. An air outlet grille 103 is provided on the top cover 102. A filter element 104 is installed inside the air purifier body 101. The filter element 104 is existing technology, and its purpose is to purify the air, so it will not be described in detail. An exhaust fan 105 is installed in the center of the air purifier body 101. The exhaust fan 105 is located in the middle of the filter element 104. A cover plate 106 is installed inside the air purifier body 101 through a snap-fit ​​component 108. The bottom surface of cover 106 is sealed to the top surface of filter element 104. Cover 106 cooperates with rotating fan 202, so that air flows according to the guidance of fan blade 2021. The top surface of cover 106 is rotatably connected to handle 107. Therefore, when filter element 104 needs to be replaced, rotate cover 102 to remove it. Then grasp handle 107 and lift it upward. Since cover 106 is connected to air purifier body 101 through snap-fit ​​component 108, cover 106 can be removed. At the same time, since the threaded protrusion of cover 102 is located on the outer wall, the thread will not hinder the removal of cover 106, and filter element 104 can be replaced. Thus, filter element 104 can be replaced conveniently and quickly.

[0026] Specifically, the latching component 108 includes latching plates 301 distributed and fixed to the bottom surface of the cover plate 106. A fixing plate 302 is fixed inside the air purifier body 101. The fixing plate 302 is symmetrically rotatably connected to latching blocks 303. An elastic element 304 is provided on the side of the two latching blocks 303 that are far apart from each other. The elastic element 304 has a spring. A circular protrusion is provided on the lower part of the latching plate 301. An annular groove that mates with the protrusion is provided on the side of the latching blocks 303 that are close to each other. Therefore, when the cover plate 106 is removed, the latching plate 301 moves upward, and the circular protrusion on the lower part of the latching plate 301 presses the latching blocks 303, causing the two latching blocks 303 to rotate about the connection point of the fixing plate 302 as the axis, and thus the two latching blocks 303 move away from each other. The clamping block 303 presses against the elastic element 304, causing the elastic element 304 to deform, thereby allowing the cover plate 106 to be removed. The elastic element 304 then resets, which in turn causes the clamping block 303 to reset. When installing the cover plate 106, the clamping plate 301 moves downward, and the circular protrusion at the lower part of the clamping plate 301 presses against the clamping block 303, causing the two clamping blocks 303 to rotate around the connection point of the fixing plate 302 as the axis. As a result, the two clamping blocks 303 move away from each other, and the clamping block 303 presses against the elastic element 304, causing the elastic element 304 to deform, thereby allowing the cover plate 106 to be removed. The elastic element 304 then resets, which in turn causes the clamping block 303 to reset. In this way, the two clamping blocks 303 clamp the circular protrusion at the lower part of the clamping plate 301, thereby achieving rapid installation.

[0027] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. An integrated structure of motor, fan, and rotor, applied to the body of an air purifier (101), characterized in that, An exhaust fan (105) is provided inside the air purifier body (101). The exhaust fan (105) includes a base (201). A rotating shaft (203) is rotatably inserted at the center of the base (201) via a bearing (205). A rotating fan (202) is connected to the end of the rotating shaft (203). A filling groove (2031) is provided at the connection between the rotating shaft (203) and the rotating fan (202). The filling groove (2031) is filled with adhesive. The rotating fan (202) is connected to the rotating shaft (203) via in-mold injection molding. A groove (2023) is provided at the lower part of the rotating fan (202). A buffer (206) is provided in the groove (2023). A stator (204) is sleeved on the base (201). The stator (204) is located between the rotating fan (202) and the base (201). The lower part of the rotating fan (202) is a flat-topped conical shape (2024), the upper part of the rotating fan (202) is a cylindrical shape (2022) for air outlet, and the middle part of the rotating fan (202) is provided with fan blades (2021) for air intake.

2. The integrated structure of motor and wind turbine rotor according to claim 1, characterized in that, The fan blade (2021) has a certain curvature.

3. The integrated structure of motor and wind turbine rotor according to claim 2, characterized in that, The adhesive is a resin.

4. An air purifier, characterized in that, The device includes an air purifier body (101) and an integrated motor-fan rotor structure as described in any one of claims 1-3. An air inlet (1011) is provided on the lower part of the outer wall of the air purifier body (101). A top cover (102) is threadedly connected to the upper part of the air purifier body (101). An air outlet grille (103) is provided on the top cover (102). A filter element (104) is installed inside the air purifier body (101). An exhaust fan (105) is installed in the center of the air purifier body (101). The exhaust fan (105) is located in the middle of the filter component (104). A cover plate (106) is installed in the air purifier body (101) through a snap-fit ​​component (108). The bottom surface of the cover plate (106) is sealed to the top surface of the filter component (104). The cover plate (106) cooperates with the rotating fan (202) so that the air flows according to the guidance of the fan blades (2021).

5. An air purifier according to claim 4, characterized in that, The upper cover (102) is provided with corrugated protrusions (1021) to facilitate rotation of the upper cover (102).

6. An air purifier according to claim 5, characterized in that, A handle (107) is rotatably connected to the top surface of the cover plate (106).

7. An air purifier according to claim 6, characterized in that, The snap-fit ​​component (108) includes snap-fit ​​plates (301) distributed and fixed to the bottom surface of the cover plate (106). A fixing plate (302) is fixed inside the air purifier body (101). The fixing plate (302) is symmetrically rotatably connected to snap-fit ​​blocks (303). An elastic element (304) is provided on the side of the two snap-fit ​​blocks (303) that are far apart from each other. A circular protrusion is provided on the lower part of the snap-fit ​​plate (301). A circular groove that cooperates with the protrusion is provided on the side of the snap-fit ​​blocks (303) that are close to each other.

Citation Information

Patent Citations

  • Plasma dehumidification air purifier

    CN118517742A