Stator impeller, motor and vacuum cleaner

Abstract

The present invention relates to the field of motors, and discloses a stator impeller, a motor, and a vacuum cleaner. In the present invention, the stator impeller includes: a wheel body with an axial hole provided along the wheel center; a plurality of guide blades equidistantly arranged on the outer wheel surface of the wheel body around the wheel center; wherein the guide blades are arranged obliquely, and include: an arc-shaped front plate, an arc-shaped rear plate opposite to the arc-shaped front plate, and a straight plate connecting the arc-shaped front plate and the arc-shaped rear plate. Therefore, when the airflow passes through the stator impeller, it flows out along the arc-shaped front plate, the straight plate, and the arc-shaped rear plate in sequence. The flow of the airflow can be guided by the arc-shaped front plate and the arc-shaped rear plate to avoid the formation of vortex in the stator impeller, which is conducive to alleviating the vortex noise generated by the fluid sliding during the transition between the moving impeller and the stator impeller. In addition, the airflow flows regularly in the stator impeller, which is conducive to reducing the flow loss of the airflow during the flow in the stator impeller. Therefore, it can not only play a noise reduction role, but also reduce the flow loss of the airflow.

Description

Technical Field

[0001] The present invention relates to the field of motors, and in particular to a stator impeller, a motor and a dust collector. Background Art

[0002] As a power source for electrical appliances and various machines, electric motors are widely used in electrical equipment such as vacuum cleaners. The motor's fan consists of a hood, a rotating impeller, and a fixed impeller. Air passes through the rotating impeller and is then discharged through the fixed impeller. As the air passes through the fixed impeller, it is thrown in all directions, generating turbulence and noise. This makes the vacuum cleaner motor always noisy during operation, significantly impacting product performance and user experience. Currently, most noise reduction methods involve adding silencing materials around the motor. While this can achieve some noise reduction, adding silencing materials increases production costs. Summary of the Invention

[0003] The object of the present invention is to provide a stator impeller, a motor and a dust collector, which can reduce the noise generated when the motor is working.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a stator impeller, comprising:

[0005] The wheel body has an axial hole along the wheel center;

[0006] A plurality of guide blades are equidistantly arranged around the wheel center on the outer surface of the wheel body;

[0007] The guide blades are tilted and include: an arc-shaped front plate, an arc-shaped rear plate opposite to the arc-shaped front plate, and a straight plate connecting the arc-shaped front plate and the arc-shaped rear plate.

[0008] In addition, an embodiment of the present invention further provides a motor, comprising: a moving impeller and the stator impeller as described above, wherein the moving impeller and the stator impeller are coaxially arranged, and the stator impeller is arranged below the moving impeller.

[0009] In addition, an embodiment of the present invention further provides a vacuum cleaner, comprising: the motor as described above.

[0010] Compared to the prior art, the embodiments of the present invention have an inclined guide vane arrangement for the stator impeller, comprising a curved front plate, a curved rear plate, and a straight plate. The curved front plate and the curved rear plate are arranged opposite each other and connected by the straight plate. Therefore, when air flows through the stator impeller, it flows out along the curved front plate, the straight plate, and the curved rear plate in sequence. The curved front plate and the curved rear plate can guide the airflow, preventing the formation of vortices within the stator impeller. This helps alleviate the vortex noise generated by fluid slippage during the transition between the moving and stator impellers. Furthermore, the airflow flows regularly within the stator impeller, helping to reduce flow losses during the flow of air within the stator impeller. This not only reduces noise but also reduces airflow losses.

[0011] In addition, the curved front plate and the curved rear plate have the same or opposite bending directions.

[0012] In addition, the curved front plate, the straight plate, and the curved rear plate are integrally formed.

[0013] In addition, the curved rear plate is formed by bending and extending the end of the straight plate away from the curved front plate in a direction away from the curved front plate; the curved front plate is formed by bending and extending the end of the straight plate away from the curved rear plate in a direction away from the curved rear plate.

[0014] In addition, the arc-shaped front plate ends at the upper end surface of the wheel body, the end of the arc-shaped rear plate away from the straight plate is in the same plane as the lower end surface of the wheel body, and the end of the arc-shaped front plate away from the straight plate is in the same plane as the upper end surface of the wheel body.

[0015] In addition, one end of the arc-shaped front plate away from the straight plate is a rounded corner, and one end of the arc-shaped rear plate away from the straight plate is a rounded corner.

[0016] In addition, each of the guide blades is integrally formed with the wheel body; or, each of the guide blades is welded to the wheel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings, and these exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0018] Figure 1 It is a schematic diagram of the stator impeller structure in the first embodiment of the present invention.

[0019] As shown in the figure: 1-wheel body; 2-guide blade; 21-arc-shaped front plate; 22-arc-shaped rear plate; 23-straight plate. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more apparent, various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in various embodiments of the present invention to facilitate a better understanding of the present application. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the claims of this application can be implemented.

[0021] The first embodiment of the present invention relates to a stator wheel, such as Figure 1 As shown, the wheel body 1 comprises a wheel body 1 and a plurality of guide vanes 2 disposed on the wheel body 1. The wheel body 1 has an axial hole formed along its center. The guide vanes 2 are arranged at an angle and equidistantly around the center of the wheel body 1 on its outer surface. Specifically, the guide vanes 2 include a curved front plate 21, a curved rear plate 22 disposed opposite the curved front plate 21, and a straight plate 23 connecting the curved front plate 21 and the curved rear plate 22.

[0022] From the above, it is not difficult to find that since the guide vanes 2 of the stator impeller are arranged at an angle and are composed of a curved front plate 21, a curved rear plate 22, and a straight plate 23, wherein the curved front plate 21 and the curved rear plate 22 are arranged opposite to each other and connected by the straight plate 23, when the airflow flows through the stator impeller, it flows out in the directions of the curved front plate 21, the straight plate 23, and the curved rear plate 22 in sequence. Therefore, the curved front plate 21 and the curved rear plate 22 can guide the airflow, prevent the airflow from forming vortices in the stator impeller, and help alleviate the vortex noise generated by the fluid sliding during the transition between the moving impeller and the stator impeller. In addition, the airflow flows regularly in the stator impeller, which can help reduce losses during the flow process.

[0023] In addition, in this embodiment, the curved front plate 21, the straight plate 23 and the curved rear plate 22 are integrally formed. Specifically, Figure 1 As shown, the curved rear plate 22 is formed by bending and extending the end of the straight plate 23 away from the curved front plate 21 in a direction away from the curved front plate 21, while the curved front plate 21 is formed by bending and extending the end of the straight plate 23 away from the curved rear plate 22 in a direction away from the curved rear plate 22. Furthermore, the curvature of the curved front plate 21 is the same as that of the curved rear plate 22, thereby simultaneously guiding the airflow on both sides of the guide vane 2 and directing the airflow in the same direction. Of course, in actual use, the curvature of the curved front plate 21 can also be opposite to that of the curved rear plate 22.

[0024] As a preferred solution, in this embodiment, Figure 1As shown, the curved front plate 21 terminates at the upper end surface of the wheel body 1. At the same time, the end of the curved front plate 21 away from the straight plate 23 is coplanar with the upper end surface of the wheel body 1, and the end of the curved rear plate 22 away from the straight plate 23 is coplanar with the lower end surface of the wheel body 1. Furthermore, in this embodiment, the end of the curved front plate 21 away from the straight plate 23 is rounded, and the end of the curved rear plate 22 away from the straight plate 23 is also rounded, thereby further reducing the impact between the airflow and the stator impeller.

[0025] It should be noted that, in this embodiment, in order to reduce manufacturing costs and improve production efficiency, each guide blade 2 can be integrally formed with the wheel body 1. Of course, in actual use, each guide blade 2 can also be welded and fixed to the wheel body 1.

[0026] A second embodiment of the present invention relates to a motor comprising a movable impeller and the stator impeller described in the first embodiment. Specifically, the movable impeller and the stator impeller are coaxially arranged, with the stator impeller positioned below the movable impeller. During operation, the movable impeller conveys airflow to the stator impeller, which then conveys the airflow outward. This reduces noise generated by fluid slippage.

[0027] From the above, it is not difficult to find that since the guide vanes of the stator impeller are arranged at an angle and are composed of a curved front plate, a curved rear plate, and a straight plate, wherein the curved front plate and the curved rear plate are arranged opposite each other and connected by the straight plate, when the airflow flows through the stator impeller, it flows out in the direction of the curved front plate, the straight plate, and the curved rear plate in sequence. Therefore, the curved front plate and the curved rear plate can guide the airflow, preventing the airflow from forming vortices in the stator impeller, which is conducive to alleviating the vortex noise caused by the fluid sliding during the transition between the movable impeller and the stator impeller. In addition, the airflow flows regularly in the stator impeller, which is conducive to reducing losses during the airflow process.

[0028] It is not difficult to find that this embodiment is a system implementation corresponding to the first embodiment, and this embodiment can be implemented in conjunction with the first embodiment. The relevant technical details mentioned in the first embodiment are still valid in this embodiment, and to reduce repetition, they are not repeated here. Accordingly, the relevant technical details mentioned in this embodiment can also be applied to the first embodiment.

[0029] A third embodiment of the present invention relates to a vacuum cleaner, comprising the motor according to the second embodiment.

[0030] From the above, it is not difficult to find that since the guide vanes of the stator impeller are arranged at an angle and are composed of a curved front plate, a curved rear plate, and a straight plate, wherein the curved front plate and the curved rear plate are arranged opposite each other and connected by the straight plate, when the airflow flows through the stator impeller, it flows out in the direction of the curved front plate, the straight plate, and the curved rear plate in sequence. Therefore, the curved front plate and the curved rear plate can guide the airflow, preventing the airflow from forming vortices in the stator impeller, which is conducive to alleviating the vortex noise caused by the fluid sliding during the transition between the movable impeller and the stator impeller. In addition, the airflow flows regularly in the stator impeller, which is conducive to reducing losses during the airflow process.

[0031] It is not difficult to find that this embodiment is a system implementation corresponding to the first embodiment, and this embodiment can be implemented in conjunction with the first embodiment. The relevant technical details mentioned in the first embodiment are still valid in this embodiment, and to reduce repetition, they are not repeated here. Accordingly, the relevant technical details mentioned in this embodiment can also be applied to the first embodiment.

[0032] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and that in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A stator impeller, characterized in that: include: The wheel body (1) is provided with an axial hole along the wheel center; A plurality of guide blades (2) are arranged on the outer surface of the wheel body (1) at equal distances around the wheel center; The guide blade (2) is tilted and comprises: a curved front plate (21), a curved rear plate (22) opposite to the curved front plate (21), and a straight plate (23) connecting the curved front plate (21) and the curved rear plate (22); the curved front plate (21) and the curved rear plate (22) have the same bending direction; The curved rear plate is formed by bending and extending one end of a straight plate away from the curved front plate in a direction away from the curved front plate, and the curved front plate is formed by bending and extending one end of a straight plate away from the curved rear plate in a direction away from the curved rear plate.

2. The stator impeller according to claim 1, characterized in that: The arc-shaped front plate (21), the straight plate (23), and the arc-shaped rear plate (22) are integrally formed.

3. The stator according to claim 1, characterized in that: The arc-shaped front plate (21) terminates at the upper end surface of the wheel body (1); the end of the arc-shaped rear plate (22) away from the straight plate (23) is in the same plane as the lower end surface of the wheel body (1); and the end of the arc-shaped front plate (21) away from the straight plate (23) is in the same plane as the upper end surface of the wheel body (1).

4. The stator impeller according to claim 1, characterized in that: One end of the arc-shaped front plate (21) away from the straight plate (23) is a rounded corner, and one end of the arc-shaped rear plate (22) away from the straight plate (23) is a rounded corner.

5. The stator according to claim 1, characterized in that: Each of the guide blades (2) is integrally formed with the wheel body (1); Alternatively, each guide blade (2) is welded to the wheel body (1).

6. A motor, characterized in that: include: A moving impeller, a stator impeller according to any one of claims 1 to 5, wherein the moving impeller and the stator impeller are coaxially arranged, and the stator impeller is arranged below the moving impeller.

7. A vacuum cleaner, characterized in that: include: A motor as claimed in claim 6.

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