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,特别涉及一种定叶轮、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；若干上导叶片,绕轮心等距环设于轮本体的外轮面；若干下导叶片,绕轮心等距环设于轮本体的外轮面；各上导叶片和各下导叶片沿轮本体的轴线方向相对设置；其中,上导叶片为弧形,且包括：弧形前板、与弧形前板相连的弧形后板,弧形前板与轮本体相连,且弧形前板与弧形后板的弯曲方向相反。因而可使得各上导叶片的厚度从靠近轮本体的一侧至远离轮本体的一侧逐步增加,流道面积逐步扩张,同时通过弧形后板可使得气流能够沿弧形后板方向流出,尽可能的减小气流损失,从而提高定叶轮的导风效率。(The invention relates to the field of motors, in particular to a fixed impeller, a motor and a dust collector. In the present invention, the stator comprises: the wheel body is provided with a shaft hole along the wheel center; the upper guide vanes are annularly arranged on the outer wheel surface of the wheel body at equal intervals around the wheel center; the lower guide vanes are annularly arranged on the outer wheel surface of the wheel body at equal intervals around the wheel center; each upper guide vane and each lower guide vane are oppositely arranged along the axial direction of the wheel body; wherein, it is the arc to go up guide vane, and includes: the arc front bezel, the arc back plate that links to each other with the arc front bezel, the arc front bezel links to each other with the wheel body, and the crooked opposite direction of arc front bezel and arc back plate. Therefore, the thickness of each upper guide vane is gradually increased from one side close to the wheel body to one side far away from the wheel body, the flow passage area is gradually expanded, and meanwhile, the air flow can flow out along the direction of the arc-shaped back plate through the arc-shaped back plate, so that the air flow loss is reduced as much as possible, and the air guide efficiency of the fixed impeller is improved.)

1. A stator vane wheel, comprising:

the wheel comprises a wheel body (1) and a wheel body, wherein a shaft hole (11) is formed along the wheel center;

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

the lower guide vanes (3) are annularly arranged on the outer wheel surface of the wheel body (1) at equal intervals around the wheel center; each upper guide vane (2) and each lower guide vane (3) are oppositely arranged along the axial direction of the wheel body (1);

wherein, last guide vane (2) are the arc, and include: arc front bezel (21), with arc back plate (22) that arc front bezel (21) link to each other, arc front bezel (21) with wheel body (1) links to each other, just arc front bezel (21) with the crooked opposite direction of arc back plate (22).

2. Stator vane wheel according to claim 1, characterized in that in any two adjacent upper guide vanes (2), the distance separating the arc-shaped back plates (22) of two of said upper guide vanes (2) is greater than the distance separating the two arc-shaped front plates (21).

3. Stator wheel according to claim 1, characterized in that the curved front plate (21) of any one of the upper guide vanes (2) is tangential to the outer wheel surface of the wheel body (1).

4. The stator wheel according to claim 1, characterized in that the number of the upper guide vanes (2) is the same as the number of the lower guide vanes (3) and they are arranged in a one-to-one correspondence;

each upper guide vane (2) is opposite to each lower guide vane (3) in the direction from the end connected with the wheel body (1) to the end far away from the wheel body (1) from the end connected with the wheel body (1).

5. The stator vane wheel according to any one of claims 1 to 4, further comprising: the number of the reinforcing ribs (4) is the same as that of the lower guide vanes (3);

the reinforcing ribs (4) are arranged on the end face of one side, away from the upper guide blades (2), of the wheel body (1) in an annular mode at equal intervals around the wheel center of the wheel body (1), and the reinforcing ribs (4) are connected with the lower guide blades (3).

6. Stator blade wheel according to claim 5, characterized in that the reinforcing ribs (4) are formed for the extension of the lower guide vanes (3) in the direction of the shaft bore (11).

7. The stator vane wheel according to claim 1, further comprising: the flow deflectors (5) are arranged on the arc-shaped rear plates (22), and the flow deflectors (5) are respectively positioned on one side, facing the wheel body (1), of each arc-shaped rear plate (22).

8. Stator vane wheel according to claim 7, characterized in that the projection of the guide vane (5) on the side facing away from the wheel body (1) in the axial direction of the shaft hole (11) coincides with the projection of the lower guide vane (3) on the side facing away from the wheel body (1) in the axial direction of the shaft hole (11).

9. An electric machine, comprising: the stator vane wheel of any one of claims 1 to 8.

10. A vacuum cleaner, comprising: the electric machine of claim 9.

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 motor of dust catcher is at the working process, and the guide vane through deciding the impeller carries out the water conservancy diversion to gas, and at present gas is at the flow in-process, and the fan of motor includes fan housing, movable vane and deciding the impeller, and wind is discharged through deciding the impeller behind the movable vane, throws away along all directions when air passes through deciding the impeller, and inevitable can receive the impact of deciding the impeller, influences gaseous velocity of flow and flow, and the air current loss is great, decides the wind-guiding efficiency of impeller and is lower.

Disclosure of Invention

The invention aims to provide a fixed impeller, a motor and a dust collector, which can reduce inflow loss of airflow and improve the air guide efficiency of the fixed impeller.

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

the lower guide vanes are annularly arranged on the outer wheel surface of the wheel body at equal intervals around the wheel center; each upper guide vane and each lower guide vane are oppositely arranged along the axial direction of the wheel body;

wherein, the top guide vane is the arc, and includes: the front arc plate, with the arc back plate that the front arc plate links to each other, the front arc plate with the wheel body links to each other, just the front arc plate with the crooked opposite direction of arc back plate.

In addition, an embodiment of the present invention also provides a motor including: the impeller is fixed as described above.

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 fixed impeller comprises the impeller body, the upper guide blades and the lower guide blades are respectively arranged on the outer impeller surface of the impeller body in an annular mode around the impeller center at equal intervals and are arranged oppositely along the axis direction of the impeller body, the upper guide blades comprise the arc-shaped front plate and the arc-shaped rear plate which are connected, and meanwhile the bending directions of the arc-shaped front plate and the arc-shaped rear plate are opposite. Therefore, the thickness of each upper guide vane is gradually increased from one side close to the wheel body to one side far away from the wheel body, the flow passage area is gradually expanded, and meanwhile, the air flow can flow out along the direction of the arc-shaped back plate through the arc-shaped back plate, so that the air flow loss is reduced as much as possible, and the air guide efficiency of the fixed impeller is improved.

In addition, in any two adjacent upper guide blades, the distance between the arc-shaped back plates of the two upper guide blades is larger than the distance between the two arc-shaped front plates. Thereby ensuring that the area of the flow channel between two adjacent upper guide vanes is gradually expanded and improving the static pressure efficiency.

In addition, the arc-shaped front plate of any one of the upper guide vanes is tangent to the outer wheel surface of the wheel body.

In addition, the number of the upper guide vanes is the same as that of the lower guide vanes, and the upper guide vanes and the lower guide vanes are arranged in a one-to-one correspondence manner; each upper guide vane is opposite to each lower guide vane in direction from one end connected with the wheel body to one end far away from the wheel body.

In addition, the fixed impeller further includes: the number of the reinforcing ribs is the same as that of the lower guide vanes; the reinforcing ribs are arranged on the end face of one side, away from the upper guide blades, of the wheel body in an annular mode at equal intervals around the wheel center of the wheel body, and the reinforcing ribs are connected with the lower guide blades. Thereby can make the thickness of wheel body thinner, the quality is lighter, when guaranteeing impeller water conservancy diversion and diffusion function, can also reduce the weight on the impeller structure of deciding.

In addition, each of the ribs is formed by extending each of the lower guide vanes in a direction toward the shaft hole.

In addition, the fixed impeller further includes: the flow deflectors are arranged on the arc-shaped rear plates and are respectively positioned on one side, facing the wheel body, of each arc-shaped rear plate. Therefore, the airflow of the fixed impeller at the non-working point can flow more uniformly, and the static pressure efficiency is further improved.

In addition, the projection of one side, far away from the wheel body, of the guide vane along the axial direction of the shaft hole coincides with the projection of one side, far away from the wheel body, of the lower guide vane along the axial direction of the shaft hole. Therefore, the air flow between each upper guide vane and each lower guide vane can be better received.

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;

FIG. 2 is a plan view of a fixed impeller in the first embodiment of the present invention;

fig. 3 is a bottom view of the fixed impeller in the first embodiment of the present invention;

fig. 4 is a side view of the fixed blade wheel in the first embodiment of the present invention.

Shown in the figure: 1-a wheel body; 11-shaft hole; 2-upper guide vanes; 21-arc front plate; 22-an arc-shaped back plate; 3-lower guide vanes; 4-reinforcing ribs; 5-flow deflectors.

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.

A first embodiment of the present invention relates to a stator blade wheel, which includes a wheel body 1, a plurality of upper guide blades 2, and a plurality of lower guide blades 3, as shown in fig. 1 to 4. Wherein, wheel body 1 has seted up shaft hole 11 along the wheel center, and each upper guide vane 2 and each lower guide vane 3 encircle the wheel center equidistance respectively and locate the outer wheel face of wheel body 1, and each upper guide vane 2 and each lower guide vane 3 set up along the axis direction of wheel body 1 relatively respectively. Moreover, the upper guide vane 2 is arc-shaped and specifically includes: an arc front plate 21 connected with the wheel body 1, and an arc rear plate 22 connected with the arc front plate 21, wherein the bending directions of the arc front plate 21 and the arc rear plate 22 are opposite.

It can be easily found from the above description that the upper guide vanes 2 and the lower guide vanes 3 are respectively provided around the wheel center of the wheel body 1 at equal intervals on the outer wheel surface of the wheel body 1 and are oppositely arranged along the axial direction of the outer wheel surface, and the bending directions of the arc front plate 21 and the arc rear plate 22 are opposite. Therefore, the thickness of each upper guide vane 2 is gradually increased from one side facing the wheel body 1 to one side far away from the wheel body 1, the flow passage area is gradually expanded, and meanwhile, the air flow can flow out along the bending direction of the arc-shaped rear plate 22 through the arc-shaped rear plate 22, so that the air flow loss is reduced as much as possible, and the air guide efficiency of the fixed impeller is improved.

Specifically, in the present embodiment, as shown in fig. 1 and 2, the arc-shaped front plates 21 of the upper guide blades 2 are tangent to the outer wheel surface of the wheel body 1, and the distance between the arc-shaped rear plates 22 of the upper guide blades 2 between any two adjacent upper guide blades 2 is greater than the distance between the arc-shaped front plates 21, so that the thickness of the guide blade is increased gradually, the flow passage area is expanded gradually, and the static pressure efficiency is effectively improved.

In addition, it is worth mentioning that the number of the upper guide blades 2 is the same as that of the lower guide blades 3, and each of the upper guide blades 2 is disposed in one-to-one correspondence with each of the lower guide blades 3, and in addition, the direction from the end connected with the wheel body 1 to the end far away from the wheel body 1 of each of the upper guide blades 2 is opposite to the direction from the end connected with the wheel body 1 to the end far away from the wheel body 1 of each of the lower guide blades 3. In the actual use process, because the number of the upper guide vane 2 and the lower guide vane 3 is large, the dynamic and static interference effect between the movable impeller vane and the fixed impeller vane can be effectively reduced, so the number of the upper guide vane 2 and the lower guide vane 3 can be set to be more than or equal to eleven, and the optimal number of the upper guide vane 2 and the lower guide vane 3 is fifteen.

Preferably, in the present embodiment, as shown in fig. 3, the fixed impeller may further include a plurality of ribs 4 disposed on the impeller body 1, and the number of the ribs 4 is the same as the number of the lower guide vanes 3. Specifically, each reinforcing rib 4 is respectively arranged on the end surface of the wheel body 1 far away from each upper guide vane 2 at equal intervals around the wheel center of the wheel body 1, and each reinforcing rib 4 is respectively connected with each lower guide vane 3. Therefore, the supporting force of the wheel body 1 can be improved by arranging the reinforcing ribs 4, partial materials can be cut off at the parts, close to the wheel center, of the lower guide vanes 3, and the weight of the fixed impeller is lighter, so that the whole weight of the fixed impeller can be reduced while the guide and diffusion functions of the fixed impeller are ensured, and the whole weight of the motor can be reduced. In addition, in order to reduce the manufacturing cost of the fixed impeller, the reinforcing ribs 4 are formed by extending the lower guide vanes 3 in the direction of the shaft hole 11, so that the fixed impeller can be conveniently molded.

Note that, in the present embodiment, as shown in fig. 1 and 2, the fixed impeller may further include: the guide vanes 5 arranged on each arc-shaped back plate 22 enable airflow at the non-working point of the fixed impeller to flow more uniformly, and static pressure efficiency is further improved. Specifically, each of the deflectors 5 is located on one side of the arc-shaped back plate 22 facing the wheel body 1 and is disposed away from the wheel center. And, the projection that one side that the guide vane 5 kept away from wheel body 1 along shaft hole 11 axis direction coincides each other with projection that lower guide vane 3 kept away from wheel body 1 one side along shaft hole 11 axis direction, therefore can cut apart the air current through guide vane 5 for the air current passes through to lower guide vane 3 one side better, and flows out along lower guide vane 3, improves the velocity of flow and the flow of air current, reduces the air loss, further effectively improves the wind-guiding efficiency who decides the impeller.

A second embodiment of the invention relates to an electric machine comprising a fixed impeller as described in the first embodiment. In addition, the motor also comprises a movable impeller arranged on the fixed impeller wheel body, and the air flow is conveyed to the fixed impeller through the movable impeller and is conveyed outwards through the fixed impeller.

Through the above, it is easy to find that the upper guide vanes and the lower guide vanes are respectively arranged on the outer wheel surface of the wheel body in an equidistant way around the wheel center of the wheel body, and are oppositely arranged along the axial direction of the outer wheel surface, and the bending directions of the arc front plate and the arc rear plate are opposite. Therefore, the thickness of each upper guide vane is gradually increased from one side facing the wheel body to one side far away from the wheel body, the flow passage area is gradually expanded, meanwhile, the air flow can flow out along the bending direction of the arc-shaped back plate through the arc-shaped back plate, the air flow loss is reduced as much as possible, and the air guide efficiency of the fixed impeller is improved.

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 above, it is easy to find that the upper guide vanes and the lower guide vanes are respectively arranged on the outer wheel surface of the wheel body in an equidistant way around the wheel center of the wheel body, and are oppositely arranged along the axial direction of the outer wheel surface, and the bending directions of the arc front plate and the arc rear plate are opposite. Therefore, the thickness of each upper guide vane is gradually increased from one side facing the wheel body to one side far away from the wheel body, the flow passage area is gradually expanded, meanwhile, the air flow can flow out along the bending direction of the arc-shaped back plate through the arc-shaped back plate, the air flow loss is reduced as much as possible, and the air guide efficiency of the fixed impeller is improved.

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.