阅读说明：本技术 定叶轮、电机及吸尘器 (Fixed impeller, motor and dust collector ) 是由 俞浩 于 2019-01-17 设计创作，主要内容包括：本发明涉及电机领域,公开了一种定叶轮、电机及吸尘器。本发明中,定叶轮,包括：轮本体,沿轮心开设轴孔；若干导叶片,绕轮心等距环设于轮本体的外轮面；其中,导叶片倾斜设置,包括：弧形前板、与弧形前板相对的弧形后板、连接弧形前板与弧形后板的直板。因而在气流经过定叶轮时,依次沿弧形前板、直板、弧形后板流出,通过弧形前板与弧形后板可对气流的流动进行导向,避免气流在定叶轮内形成涡流,有利于缓解流体在动叶轮、定叶轮过渡时流体滑落产生的涡流噪声,并且,气流在定叶轮内规则地流动,有利于减少气流在定叶轮内流动过程中的流动损失。从而不仅可起到降噪作用,还可减少气流流动损失。(The invention relates to the field of motors and discloses a fixed impeller, a motor and a dust collector. In the invention, the fixed impeller comprises: the wheel body is provided with a shaft hole along the wheel center; the guide vanes are annularly arranged on the outer wheel surface of the wheel body at equal intervals around the wheel center; wherein, guide vane slope sets up, includes: the front plate comprises an arc-shaped front plate, an arc-shaped rear plate opposite to the arc-shaped front plate, and a straight plate for connecting the arc-shaped front plate and the arc-shaped rear plate. Therefore, when the airflow passes through the fixed impeller, the airflow flows out along the arc-shaped front plate, the straight plate and the arc-shaped back plate in sequence, the flow of the airflow can be guided through the arc-shaped front plate and the arc-shaped back plate, the airflow is prevented from forming a vortex in the fixed impeller, the vortex noise generated by the fluid sliding when the fluid is in transition between the fixed impeller and the movable impeller is favorably relieved, the airflow regularly flows in the fixed impeller, and the flow loss of the airflow in the flow process in the fixed impeller is favorably reduced. Therefore, the noise reduction function can be achieved, and the air flow loss can be reduced.)

1. A stator vane wheel, comprising:

the wheel body (1) is provided with a shaft hole along the wheel center;

the guide vanes (2) are annularly arranged on the outer wheel surface of the wheel body (1) at equal intervals around the wheel center;

wherein, guide vane (2) slope sets up, includes: the front plate comprises an arc-shaped front plate (21), an arc-shaped rear plate (22) opposite to the arc-shaped front plate (21), and a straight plate (23) connected with the arc-shaped front plate (21) and the arc-shaped rear plate (22).

2. Stator wheel according to claim 1, characterized in that the curved front plate (21) and the curved rear plate (22) are curved in the same or opposite direction.

3. Stator wheel according to claim 1, characterized in that the curved front plate (21), the straight plate (23) and the curved rear plate (22) are integrally formed.

4. The fixed impeller of claim 3, characterized in that the arc-shaped back plate (22) is formed by bending and extending one end of the straight plate (23) far away from the arc-shaped front plate (21) towards the direction far away from the arc-shaped front plate (21);

the arc front plate (21) is formed by bending and extending one end of the straight plate (23) far away from the arc rear plate (22) towards the direction far away from the arc rear plate (22).

5. The fixed impeller of claim 4, characterized in that the arc-shaped front plate (21) ends at the upper end face of the impeller body (1), the end of the arc-shaped back plate (22) far away from the straight plate (23) is in the same plane with the lower end face of the impeller body (1), and the end of the arc-shaped front plate (21) far away from the straight plate (23) is in the same plane with the upper end face of the impeller body (1).

6. The stator wheel according to claim 1, wherein the end of the front arc-shaped plate (21) away from the straight plate (23) is rounded, and the end of the rear arc-shaped plate (22) away from the straight plate (23) is rounded.

7. Stator wheel according to claim 1, characterized in that each of said guide vanes (2) is integrally formed with said wheel body (1);

or each guide vane (2) is welded with the wheel body (1).

8. An electric machine, comprising: the impeller, the fixed impeller of any one of claims 1 to 7, the impeller and the fixed impeller are coaxially arranged, and the fixed impeller is arranged below the impeller.

9. A vacuum cleaner, comprising: the motor as claimed in claim 8.

Technical Field

The invention relates to the field of motors, in particular to a fixed impeller, a motor and a dust collector.

Background

The motor is widely used in electrical equipment, such as a vacuum cleaner, as a power source for electrical appliances or various machines. The fan of motor includes fan housing, movable vane wheel and decides the impeller, and wind is discharged through deciding the impeller behind the movable vane wheel, throws away along all directions when the air is through deciding the impeller, produces the turbulent flow and causes the noise for the motor of dust catcher always has the noise along with in the course of the work, produces the performance of product, user experience and produces great harmful effects. Most of the existing noise reduction methods are to add noise reduction materials around the motor, so that although a certain noise reduction effect can be achieved, the addition of the noise reduction materials increases the production cost.

Disclosure of Invention

The invention aims to provide a fixed impeller, a motor and a dust collector, which can reduce the noise generated when the motor works.

In order to solve the above technical problem, an embodiment of the present invention provides a fixed impeller, including:

the wheel body is provided with a shaft hole along the wheel center;

the guide vanes are annularly arranged on the outer wheel surface of the wheel body at equal intervals around the wheel center;

wherein, guide vane slope sets up, includes: the front plate comprises an arc front plate, an arc rear plate opposite to the arc front plate, and a straight plate connected with the arc front plate and the arc rear plate.

In addition, an embodiment of the present invention also provides a motor including: the movable impeller and the fixed impeller are coaxially arranged, and the fixed impeller is arranged below the movable impeller.

In addition, an embodiment of the present invention also provides a vacuum cleaner, including: a motor as described above.

Compared with the prior art, the guide vanes of the fixed impeller are obliquely arranged and comprise the arc-shaped front plate, the arc-shaped rear plate and the straight plate, wherein the arc-shaped front plate and the arc-shaped rear plate are oppositely arranged, and the arc-shaped front plate and the arc-shaped rear plate are connected through the straight plate. Therefore, when the airflow passes through the fixed impeller, the airflow flows out along the arc-shaped front plate, the straight plate and the arc-shaped back plate in sequence, the flow of the airflow can be guided through the arc-shaped front plate and the arc-shaped back plate, the airflow is prevented from forming a vortex in the fixed impeller, the vortex noise generated by the fluid sliding when the fluid is in transition between the fixed impeller and the movable impeller is favorably relieved, the airflow regularly flows in the fixed impeller, and the flow loss of the airflow in the flow process in the fixed impeller is favorably reduced. Therefore, the noise reduction function can be achieved, and the air flow loss can be reduced.

In addition, the bending directions of the arc-shaped front plate and the arc-shaped back plate are the same or opposite.

In addition, the arc front plate, the straight plate and the arc rear plate are integrally formed.

In addition, the arc-shaped rear plate is formed by bending and extending one end of the straight plate, which is far away from the arc-shaped front plate, towards the direction far away from the arc-shaped front plate; the arc front bezel is the straight board is kept away from the one end of arc back plate is towards keeping away from the crooked extension of direction of arc back plate forms.

In addition, the arc front plate ends at the upper end face of the wheel body, one end, far away from the straight plate, of the arc rear plate and the lower end face of the wheel body are located on the same plane, and one end, far away from the straight plate, of the arc front plate and the upper end face of the wheel body are located on the same plane.

In addition, the one end that the arc front bezel kept away from the straight board is a fillet, the one end that the arc back plate kept away from the straight board is a fillet.

In addition, each guide vane is integrally formed with the wheel body; or, each guide vane is welded with the wheel body.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic view of a fixed impeller according to a first embodiment of the present invention.

Shown in the figure: 1-a wheel body; 2-guide vanes; 21-arc front plate; 22-an arc-shaped back plate; 23-straight plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

The first embodiment of the present invention relates to a stator vane wheel, which, as shown in fig. 1, includes a wheel body 1 and a plurality of guide vanes 2 provided on the wheel body 1. Wherein, wheel body 1 has seted up the shaft hole along its wheel center, and each guide vane 2 slope sets up, and the wheel center equidistance of duplex winding wheel body 1 encircles and locates on the outer wheel face of wheel body 1. Specifically, the guide vane 2 includes an arc front plate 21, an arc rear plate 22 disposed opposite to the arc front plate 21, and a straight plate 23 connecting the arc front plate 21 and the arc rear plate 22.

It can be easily found from the above that, the guide vane 2 of the fixed vane wheel is obliquely arranged and is composed of an arc front plate 21, an arc back plate 22 and a straight plate 23, wherein the arc front plate 21 and the arc back plate 22 are oppositely arranged, and the arc front plate 21 and the arc back plate 22 are connected through the straight plate 23. Therefore, when the airflow flows through the fixed impeller, the airflow flows out in the directions of the arc-shaped front plate 21, the straight plate 23 and the arc-shaped back plate 22 in sequence, the airflow can be guided by the arc-shaped front plate 21 and the arc-shaped back plate 22, the airflow is prevented from forming a vortex in the fixed impeller, vortex noise generated by the sliding of the fluid when the fluid is in transition between the movable impeller and the fixed impeller is relieved, the airflow regularly flows in the fixed impeller, and loss in the airflow flowing process can be reduced.

In addition, in the present embodiment, the arc front plate 21, the straight plate 23 and the arc rear plate 22 are integrally formed, specifically, as shown in fig. 1, the arc rear plate 22 is formed by bending and extending one end of the straight plate 23 away from the arc front plate 21 in a direction away from the arc front plate 21, and the arc front plate 21 is formed by bending and extending one end of the straight plate 23 away from the arc rear plate 22 in a direction away from the arc rear plate 22. Further, since the curved direction of the curved front plate 21 is the same as the curved direction of the curved rear plate 22, the air flows on both sides of the guide vane 2 can be guided simultaneously and can be made to flow in the same direction. Of course, in actual use, the curved front plate 21 may be curved in the opposite direction to the curved rear plate 22.

Preferably, in the present embodiment, as shown in fig. 1, the arc-shaped front plate 21 is stopped at the upper end surface of the wheel body 1, and the end of the arc-shaped front plate 21 away from the straight plate 23 is flush with the upper end surface of the wheel body 1, and the end of the arc-shaped rear plate 22 away from the straight plate 23 is flush with the lower end surface of the wheel body 1. In addition, in the present embodiment, the end of the arc-shaped front plate 21 away from the straight plate 23 is a rounded corner, and the end of the arc-shaped rear plate 22 away from the straight plate 23 is also a rounded corner, so that the impact between the airflow and the fixed impeller can be further reduced.

In the present embodiment, each guide vane 2 may be integrally formed with the wheel body 1 in order to reduce manufacturing cost and improve production efficiency, but naturally, each guide vane 2 may be welded and fixed to the wheel body 1 during actual use.

A second embodiment of the present invention relates to a motor including a movable impeller and a fixed impeller as described in the first embodiment. Specifically, the movable impeller and the fixed impeller are coaxially arranged, the fixed impeller is arranged below the movable impeller, and in the using process, the movable impeller conveys the airflow to the fixed impeller and the airflow is conveyed outwards through the fixed impeller. Thus, the noise generated by the fluid slip can be reduced.

Through the discovery that is not difficult for the aforesaid, because the guide vane slope of deciding the impeller sets up, and comprises arc front bezel, arc back plate and straight board, wherein, the arc front bezel sets up with the arc back plate relatively, and the arc front bezel is connected through straight board with the arc back plate. Therefore, when the airflow flows through the fixed impeller, the airflow flows out in the directions of the arc-shaped front plate, the straight plate and the arc-shaped back plate in sequence, so that the airflow can be guided through the arc-shaped front plate and the arc-shaped back plate, the airflow is prevented from forming a vortex in the fixed impeller, vortex noise generated by the sliding of the fluid when the fluid is in transition between the movable impeller and the fixed impeller is relieved, the airflow regularly flows in the fixed impeller, and the loss in the airflow flowing process can be reduced.

It should be noted that this embodiment is a system embodiment corresponding to the first embodiment, and this embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.

A third embodiment of the present invention relates to a vacuum cleaner including the motor according to the second embodiment.

Through the discovery that is not difficult for the aforesaid, because the guide vane slope of deciding the impeller sets up, and comprises arc front bezel, arc back plate and straight board, wherein, the arc front bezel sets up with the arc back plate relatively, and the arc front bezel is connected through straight board with the arc back plate. Therefore, when the airflow flows through the fixed impeller, the airflow flows out in the directions of the arc-shaped front plate, the straight plate and the arc-shaped back plate in sequence, so that the airflow can be guided through the arc-shaped front plate and the arc-shaped back plate, the airflow is prevented from forming a vortex in the fixed impeller, vortex noise generated by the sliding of the fluid when the fluid is in transition between the movable impeller and the fixed impeller is relieved, the airflow regularly flows in the fixed impeller, and the loss in the airflow flowing process can be reduced.

It should be noted that this embodiment is a system embodiment corresponding to the first embodiment, and this embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.