CN109340187B - Fixed impeller for dust collector, fan and dust collector - Google Patents
Fixed impeller for dust collector, fan and dust collector Download PDFInfo
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- CN109340187B CN109340187B CN201811168692.5A CN201811168692A CN109340187B CN 109340187 B CN109340187 B CN 109340187B CN 201811168692 A CN201811168692 A CN 201811168692A CN 109340187 B CN109340187 B CN 109340187B
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- wheel body
- vacuum cleaner
- impeller
- flow guide
- fixed impeller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fixed impeller, a fan and a dust collector for the dust collector. The fixed impeller for a vacuum cleaner includes: the wheel body is provided with a central hole penetrating through the upper end surface of the wheel body; the upper blades are respectively connected with the wheel body and are arranged at intervals along the circumferential direction of the wheel body, each upper blade is provided with a flow guide part which upwards extends out of the upper end surface of the wheel body along the axial direction of the wheel body, the flow guide part upwards slants and extends along the circumferential direction of the wheel body, and an air inlet is defined between every two adjacent upper blades; the lower blades are arranged on the lower end face of the wheel body and are arranged along the circumferential direction of the wheel body at intervals, and an air outlet flow channel communicated with the air inlet is defined between every two adjacent lower blades. The fixed impeller for the dust collector has the advantage of high efficiency while realizing compact design.
Description
Technical Field
The invention relates to the technical field of dust collectors, in particular to a fixed impeller for a dust collector, a fan for the dust collector with the fixed impeller for the dust collector and the dust collector with the fan for the dust collector.
Background
The centrifugal fan for the dust collector in the related art usually adopts two forms, one form is that an air duct formed by an upper blade of a fixed impeller and a fan cover has a tendency of gradually expanding along the radial direction, namely, the upper blade is designed into an expansion sheet; the other fan structure adopts a flat fixed impeller, so that an upper blade is omitted, namely, a diffusion sheet is omitted.
However, the fixed impeller with the diffuser plate cannot be generally used in the situation that the ratio of the outer diameter of the fan to the outer diameter of the movable impeller is small, and the fixed impeller without the diffuser plate is low in efficiency.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the fixed impeller for the dust collector, and the fixed impeller for the dust collector has the advantages of compact structure, wide application range, high efficiency and the like.
The invention also provides a fan for the dust collector, which is provided with the fixed impeller for the dust collector.
The invention also provides a dust collector with the fan for the dust collector.
According to an embodiment of the first aspect of the present invention, a stator blade wheel for a vacuum cleaner includes: the wheel body is provided with a central hole penetrating through the upper end surface of the wheel body; the upper blades are respectively connected with the wheel body and are arranged at intervals along the circumferential direction of the wheel body, each upper blade is provided with a flow guide part which upwards extends out of the upper end surface of the wheel body along the axial direction of the wheel body, the flow guide part upwards slants and extends along the circumferential direction of the wheel body, and an air inlet is defined between every two adjacent upper blades; the lower blades are arranged on the lower end face of the wheel body and are arranged along the circumferential direction of the wheel body at intervals, and an air outlet flow channel communicated with the air inlet is defined between every two adjacent lower blades.
According to the fixed impeller for the dust collector provided by the embodiment of the invention, the guide part is utilized, so that the fixed impeller can be used in the occasions with a smaller ratio of the outer diameter of the fan to the outer diameter of the movable impeller, the application range is wide, the invalid rotation of the airflow in the space above the fixed impeller can be effectively reduced, the energy loss is reduced, and the efficiency is improved.
In addition, the fixed impeller for the dust collector according to the embodiment of the invention also has the following additional technical characteristics:
according to some embodiments of the invention, the upper blade has a mounting portion provided at a periphery of the wheel body, the first end of the flow guiding portion is connected to the mounting portion and at least a portion of the second end is located above an upper end surface of the wheel body.
Further, in a projection plane perpendicular to the axial direction of the wheel body, at least a part of the flow guide portion is located on the outer side of the wheel body.
Optionally, in a radial direction of the wheel body, the flow guide portion extends from outside to inside and is inclined downwards.
Advantageously, the width of the flow guide portion in the radial direction of the wheel body decreases from bottom to top.
Further, in a projection plane perpendicular to the axial direction of the wheel body, the projection of the flow guide part is generally triangular or trapezoidal.
In some embodiments of the invention, a projection of the flow guiding portion in a projection plane perpendicular to an axial direction of the wheel body is substantially rectangular.
According to some embodiments of the present invention, the flow guiding portion is disposed on the upper end surface of the wheel body, and the flow guiding portion extends from outside to inside in a radial direction of the wheel body and is inclined downward to the upper end surface of the wheel body to form a wind shielding portion for shielding the wind inlet.
Advantageously, the wind blocking portion is configured in an arc shape protruding inward in a radial direction of the wheel body.
According to some embodiments of the invention, the flow guide is configured in a combination of one or more of a straight line shape, an upwardly convex arc shape, and a downwardly concave arc shape.
According to some embodiments of the invention, the fixed impeller for a vacuum cleaner further comprises: the wind-blocking ring surrounds the wheel body, and extends upwards along the axial direction of the wheel body to the upper end face of the wheel body and is respectively connected with the flow guide parts of the plurality of upper blades.
A blower for a vacuum cleaner according to an embodiment of a second aspect of the present invention includes: a fixed impeller for a vacuum cleaner according to an embodiment of a first aspect of the present invention; the fan cover is buckled on the fixed impeller and defines a wind cavity with the fixed impeller; a drive device having a main shaft rotatably driving the impeller through the central bore; the movable impeller is in transmission connection with the main shaft, the movable impeller is located above the upper end face of the wheel body and located in the air cavity, and the opening direction of the air inlet is opposite to the rotating direction of the movable impeller.
According to the fan for the dust collector, the fixed impeller for the dust collector is utilized, so that the fan is beneficial to realizing a small and compact design and has higher efficiency.
A vacuum cleaner in accordance with an embodiment of the third aspect of the present invention comprises a fan for a vacuum cleaner in accordance with an embodiment of the second aspect of the present invention.
According to the dust collector provided by the embodiment of the invention, the fan for the dust collector is utilized, so that the miniaturization and the high efficiency are favorably realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a perspective view of a stationary impeller for a vacuum cleaner according to an embodiment of the present invention;
fig. 2 is a perspective view of a fixed impeller for a vacuum cleaner according to an embodiment of the present invention;
fig. 3 is a perspective view of a fixed impeller for a vacuum cleaner according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a fixed impeller for a vacuum cleaner according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a fixed impeller for a vacuum cleaner according to an embodiment of the present invention;
fig. 6 is a sectional view of a fixed impeller for a vacuum cleaner according to an embodiment of the present invention;
FIG. 7 is a perspective view of a stationary impeller for a vacuum cleaner in accordance with a first alternative embodiment of the present invention;
FIG. 8 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a first alternative embodiment of the present invention;
FIG. 9 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a first alternative embodiment of the present invention;
FIG. 10 is a perspective view of a stationary impeller for a vacuum cleaner in accordance with a second alternative embodiment of the present invention;
FIG. 11 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a second alternative embodiment of the present invention;
FIG. 12 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a second alternative embodiment of the present invention;
fig. 13 is a perspective view of a blower fan for a vacuum cleaner according to an embodiment of the present invention;
fig. 14 is a sectional view of a blower fan for a vacuum cleaner according to an embodiment of the present invention;
fig. 15 is a schematic structural view of a blower fan for a vacuum cleaner according to an embodiment of the present invention;
FIG. 16 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a third alternative embodiment of the present invention;
FIG. 17 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a third alternative embodiment of the present invention;
FIG. 18 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a fourth alternative embodiment of the present invention;
FIG. 19 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a fourth alternative embodiment of the present invention;
fig. 20 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a fifth alternative embodiment of the present invention;
fig. 21 is a schematic structural view of a fixed impeller for a vacuum cleaner in accordance with a fifth alternative embodiment of the present invention.
Reference numerals:
a fan 1 for a dust collector,
A fixed impeller 10, an air inlet 11, an air outlet flow channel 12, an impeller body 100, a central hole 101, an upper blade 200, a flow guide part 210, a wind shielding part 211, a mounting part 220, a lower blade 300, a wind shielding ring 400, a wind shielding ring and a fan for a dust collector,
The fan housing 20, the impeller 30, the bracket 40, the casing 50, and the main shaft 60 of the motor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The present application is based on the discovery and recognition by the inventors of the following facts and problems:
in the centrifugal fan for the dust collector in the related art, the movable impeller rotates at a high speed under the driving of the motor, and air in the movable impeller is thrown out along the radial direction under the action of centrifugal force. Specifically, on one hand, negative pressure is formed inside the movable impeller, and external air continuously flows into the movable impeller from the air inlet; on the other hand, the high-speed airflow thrown out by the driven impeller enters the lateral space through an air duct formed by the upper blades of the fixed impeller and the fan cover, and finally enters the motor part through the lower blades to be discharged.
The fan usually adopts two forms, and one kind makes the wind channel that the last blade of fixed impeller and fan housing formed have the trend of radially expanding gradually, namely, designs the last blade into the diffusion piece, and the existence of diffusion piece makes the gas flow path bigger and bigger, forms the negative pressure, is favorable to the movable impeller air-out, and efficiency is higher.
However, the fixed impeller is usually only suitable for the case of large outer diameter of the fan due to the existence of the diffuser. In consideration of reliability and manufacturability, the outer diameter of the impeller should not be too small to avoid excessive rotation speed. Under the dual restriction of fan external diameter and movable vane external diameter, the space that leaves for the diffusion piece is very limited, can not obtain fine effect usually. Therefore, the fixed impeller with the diffuser plate cannot be generally used in the situation that the ratio of the outer diameter of the fan to the outer diameter of the movable impeller is small.
The other fan structure adopts a flat fixed impeller, an upper blade is omitted, namely a diffuser is omitted, high-speed gas thrown out by the movable impeller turns over the fixed impeller, enters a lower blade through an air inlet of the fixed impeller after turning, and finally enters a motor part to be discharged.
The structure can be used under the dual limitation of a smaller outer diameter of the fan and a larger outer diameter of the movable impeller, and a compact fan can be designed. However, because there is no diffuser, the air outlet of the moving impeller, the upper end surface of the fixed impeller, and the inner surface of the fan housing form a complete annular space, and the high-speed airflow continuously rotates in the space to generate a vortex, which results in a large energy loss and low efficiency.
Therefore, the invention provides the fixed impeller 10 for the dust collector, which has the advantages of compact structure, wide application range and high efficiency.
The invention also provides a fan 1 for the dust collector with the fixed impeller 10 for the dust collector and the dust collector with the fan 1 for the dust collector.
A fixed impeller 10 for a vacuum cleaner according to an embodiment of the first aspect of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 21, a stationary blade wheel 10 for a vacuum cleaner according to an embodiment of the present invention includes: a wheel body 100, a plurality of upper blades 200 and a plurality of lower blades 300.
Specifically, the wheel body 100 has a central hole 101 penetrating through an upper end surface thereof, and the central hole 101 facilitates connection of the movable impeller and the main shaft of the driving device, and the movable impeller is located above the upper end surface of the wheel body 100. The plurality of upper blades 200 are respectively connected to the wheel body 100, and the plurality of upper blades 200 are arranged at intervals along the circumferential direction of the wheel body 100, and each upper blade 200 has a flow guiding portion 210 extending upward from the upper end surface of the wheel body 100 along the axial direction of the wheel body 100.
Here, the plurality of upper blades 200 are provided at intervals in the circumferential direction of the wheel body 100, including a case where the projections of two adjacent upper blades 200 on the projection plane perpendicular to the axial direction of the wheel body 100 partially overlap. It will be appreciated that the height of the flow guides 210 above the wheel 100 is compatible with the upper edge of the assembled impeller.
The flow guiding portion 210 extends obliquely upward along the circumferential direction of the wheel body 100. That is, the flow guiding portion 210 extends along the circumferential direction of the wheel body 100, and at least a portion of the flow guiding portion 210 is located above the upper end surface of the wheel body 100. The air inlet 11 is defined between two adjacent upper blades 200.
The plurality of lower blades 300 are disposed on the lower end surface of the wheel body 100, the plurality of lower blades 300 are disposed at intervals along the circumferential direction of the wheel body 100, and an air outlet flow channel 12 communicated with the air inlet 11 is defined between two adjacent lower blades 300.
Therefore, according to the fixed impeller 10 for the dust collector provided by the embodiment of the invention, due to the existence of the guide part 210 of the upper blade 200, the airflow is more easily guided to the air inlet 11, the guide part 210 utilizes unused idle space of a common flat fixed impeller, the characteristic of the guide part suitable for occasions with smaller ratio of the outer diameter of the fan to the outer diameter of the movable impeller is not influenced, and the application range is wide; furthermore, the guide portions 210 of the plurality of upper blades 200 surround the movable impeller, so that the airflow thrown off by the movable impeller easily enters the air inlet 11 and smoothly flows into the air outlet flow passage 12, and the ineffective rotation of the airflow in the space above the fixed impeller 10 can be effectively reduced, thereby reducing energy loss and improving efficiency.
According to some embodiments of the present invention, the flow guide portion 210 is configured in one or more combination of a straight line shape, an upwardly convex arc shape, and a downwardly concave arc shape. That is, the flow guide portion 210 may be a straight line shape, an arc shape protruding upward, or an arc shape recessed downward, or a combination shape of a straight line, a convex arc, and a concave arc, which is not particularly limited in the present invention.
According to some embodiments of the present invention, as shown in fig. 1, 2, 4, 6-8, and 16-21, the upper blade 200 has a mounting portion 220, the mounting portion 220 is disposed at the periphery of the wheel body 100, a first end of the flow guiding portion 210 is connected to the mounting portion 220, and at least a portion of a second end of the flow guiding portion 210 is located above the upper end surface of the wheel body 100. Thus, the production and processing are convenient.
It will be appreciated that as shown in fig. 1, 2, 4, 6-8, 20 and 21, the first end of the flow guide 210 may be spaced from the upper end surface of the wheel 100; alternatively, as shown in fig. 16-19, the first end of the flow guide portion 210 may be connected to the upper end surface of the wheel body 100.
Further, in a projection plane perpendicular to the axial direction of the wheel body 100, at least a part of the flow guiding portion 210 is located on the outer side of the wheel body 100, so as to facilitate surrounding the movable impeller. For example, as shown in fig. 4, 8, 19, and 21, the flow guide portion 210 is entirely located on the outer side of the wheel body 100; for another example, as shown in fig. 17, a portion of the flow guide portion 210 is located on the outer side of the wheel body 100.
Alternatively, as shown in fig. 6, the flow guiding portion 210 extends from the outside to the inside in the radial direction of the wheel body 100 and is inclined downward. That is, the flow guide portion 210 is located below the outer edge at the inner edge in the radial direction of the wheel body 100. In this way, the flow guiding portion 210 is inclined inward along the radial direction of the wheel body 100 from top to bottom, thereby facilitating the guiding of the airflow into the air inlet 11. For example, the projection of the flow guide part 210 in the axial projection plane is an arc shape protruding upward, and the axial distance between the inner edge and the outer edge of the flow guide part 210 gradually decreases from bottom to top.
Advantageously, as shown in fig. 1, 2, 4, and 16-21, the width of the flow guiding portion 210 in the radial direction of the wheel body 100 decreases from bottom to top, for example, the inner edge of the flow guiding portion 210 gradually approaches the outer edge from bottom to top, so as to facilitate the gas flow and reduce the energy loss.
Further, as shown in fig. 4, 17 and 19, the projection of the flow guide portion 210 is substantially triangular in the projection plane perpendicular to the axial direction of the wheel body 100, or as shown in fig. 21, the projection of the flow guide portion 210 is substantially trapezoidal, so that the structure is simple and the air flows smoothly. It should be noted that the generally triangular shape or the generally trapezoidal shape means that each side of the triangle or the trapezoidal shape may be a straight line, a curved line or a combination thereof, for example, two sides of the flow guiding portion 210 opposite to each other in the radial direction of the wheel body 100 may be arc-shaped.
In some embodiments of the present invention, as shown in fig. 8, the flow guiding portion 210 has a substantially rectangular projection in a projection plane perpendicular to the axial direction of the wheel body 100, so that the structure is simple. Similarly, a substantially rectangular shape means that each side of the rectangle may be straight, curved, or a combination thereof, for example, two sides of the flow guide portion 210 opposite to each other in the radial direction of the wheel body 100 may be arc-shaped. Of course, the flow guide portion 210 may have other geometric shapes as long as the flow guide portion 210 does not interfere with the assembled movable impeller.
According to some embodiments of the present invention, as shown in fig. 10-12, the flow guiding portion 210 is disposed on the upper end surface of the wheel body 100, so that the flow guiding portion 210 is still within the outer diameter of the original fixed impeller, and the structure is more compact, and the space is more effectively utilized. The flow guiding portion 210 extends from outside to inside in the radial direction of the wheel body 100 and is inclined downward to the upper end surface of the wheel body 100 to form a wind shielding portion 211 for shielding the wind inlet 11, so that the wind shielding portion 211 can enable the gas to flow to the next wind inlet 11 smoothly, and energy loss is reduced. It will be appreciated that an open slot may be provided in the upper end surface of the wheel body 100 to facilitate formation of the air inlet 11.
Advantageously, as shown in fig. 10, the wind blocking portion 211 is configured in an arc shape protruding inward in the radial direction of the wheel body 100, so that the wind inlets 11 are larger, and the flow passage is more easily opened.
In the related art, the air duct of the common flat plate fixed impeller is formed by assembling the fixed impeller and the fan cover, and due to manufacturing factors, the two parts are difficult to be matched well, and a small gap can generate high-frequency noise.
To this end, according to some embodiments of the present invention, as shown in fig. 1 to 21, the fixed impeller 10 for a vacuum cleaner further includes: the wind blocking ring 400 is arranged around the wheel body 100, the wind blocking ring 400 extends upwards from the upper end surface of the wheel body 100 along the axial direction of the wheel body 100 and is respectively connected with the flow guide parts 210 of the plurality of upper blades 200, so that the air duct mainly comprises the fixed impeller 10, the sealing performance is good, small gaps between the fixed impeller and the fan cover can be eliminated, the noise generated by the small gaps is weakened, the efficiency is relatively high, and the wind blocking ring 400 can also provide support for the plurality of upper blades 200.
A blower 1 for a vacuum cleaner according to a second aspect of the present invention includes: the fixed impeller 10, the fan housing 20, the driving device and the movable impeller 30 for the vacuum cleaner according to the embodiment of the first aspect of the present invention.
The fixed impeller 10 is fixed on a bracket 40 through screws, and the bracket 40 is connected with the casing 50; or, the fixed impeller 10 is connected with the casing 50 by an integral positioning pin, so long as the fixed impeller 10 is stably and reliably fixedly connected with the casing 50. The wind cover 20 is fastened on the fixed impeller 10, and the wind cover 20 and the fixed impeller 10 define a wind cavity.
The driving device has a main shaft 60, the main shaft 60 rotatably passes through the central hole 101, the movable impeller 30 is located above the upper end surface of the wheel body 100, and the movable impeller 30 is located in the wind cavity. The movable impeller 30 is fixedly connected with a main shaft 60 of the driving device to be rotated by the main shaft 60. The opening direction of the air inlet 11 is opposite to the rotation direction of the movable impeller 30, that is, the rotation direction of the flow guide portion 210 of the plurality of upper blades 200 is opposite to the rotation direction of the movable impeller 30.
The fan 1 for a vacuum cleaner according to the embodiment of the present invention, using the stator blade wheel 10 for a vacuum cleaner as described above, facilitates a compact design with a small size and high efficiency.
Other constructions and operations of the fan 1 for a vacuum cleaner according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
A vacuum cleaner according to an embodiment of the third aspect of the present invention comprises a fan 1 for a vacuum cleaner according to an embodiment of the second aspect of the present invention.
According to the dust collector of the embodiment of the invention, the fan 1 for the dust collector is utilized, so that the miniaturization and the high efficiency are favorably realized.
Other constructions and operations of the vacuum cleaner according to embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "width," "upper," "lower," "vertical," "horizontal," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation or positional relationships indicated in the drawings, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. The first feature being "on," "over" and "above" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "a specific embodiment," "an example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A stator vane wheel for a vacuum cleaner, comprising:
the wheel body is provided with a central hole penetrating through the upper end surface of the wheel body;
the upper blades are respectively connected with the wheel body and are arranged at intervals along the circumferential direction of the wheel body, each upper blade is provided with a flow guide part which upwards extends out of the upper end surface of the wheel body along the axial direction of the wheel body, the flow guide part upwards slants and extends along the circumferential direction of the wheel body, and an air inlet is defined between every two adjacent upper blades;
the lower blades are arranged on the lower end face of the wheel body and are arranged at intervals along the circumferential direction of the wheel body, an air outlet flow channel communicated with the air inlet is defined between every two adjacent lower blades, and the blade face of the upper blade extends along the radial direction of the wheel body;
the flow guide part is arranged on the upper end surface of the wheel body, and the flow guide part further extends from outside to inside in the radial direction of the wheel body and downwards inclines to extend to the upper end surface of the wheel body so as to form a wind shielding part for shielding the air inlet;
the wind blocking portion is configured in an arc shape protruding inward in a radial direction of the wheel body.
2. The fixed impeller for the vacuum cleaner as claimed in claim 1, wherein the upper blade has a mounting portion provided at a periphery of the wheel body, the first end of the flow guide portion is connected to the mounting portion and at least a portion of the second end is located above an upper end surface of the wheel body.
3. The fixed impeller for the vacuum cleaner as claimed in claim 2, wherein at least a part of the flow guide portion is located outside the wheel in a projection plane perpendicular to an axial direction of the wheel.
4. The fixed impeller for a vacuum cleaner as claimed in claim 2, wherein the flow guide portion extends from outside to inside and is inclined downward in a radial direction of the impeller body.
5. The fixed impeller for the vacuum cleaner as claimed in claim 2, wherein the width of the flow guide portion in the radial direction of the wheel body is reduced from bottom to top.
6. The fixed impeller for the vacuum cleaner as claimed in claim 5, wherein a projection of the flow guide portion in a projection plane perpendicular to an axial direction of the impeller body is substantially triangular or trapezoidal.
7. The fixed impeller for the vacuum cleaner as claimed in claim 2, wherein a projection of the flow guide portion in a projection plane perpendicular to an axial direction of the wheel body is substantially rectangular.
8. The stator vane wheel for a vacuum cleaner as set forth in any one of claims 1 to 7, wherein the flow guide portion is configured in a combination of one or more of a straight line shape, an upwardly convex arc shape and a downwardly concave arc shape.
9. The fixed impeller for a vacuum cleaner as claimed in any one of claims 1 to 7, further comprising:
the wind-blocking ring surrounds the wheel body, and extends upwards along the axial direction of the wheel body to the upper end face of the wheel body and is respectively connected with the flow guide parts of the plurality of upper blades.
10. A fan for a vacuum cleaner, comprising:
a stator blade wheel for a vacuum cleaner according to any one of claims 1 to 9;
the fan cover is buckled on the fixed impeller and defines a wind cavity with the fixed impeller;
a drive having a spindle rotatably extending through the central bore;
the movable impeller is connected with the main shaft to be driven by the driving device to rotate, the movable impeller is located above the upper end face of the wheel body and located in the air cavity, and the opening direction of the air inlet is opposite to the rotating direction of the movable impeller.
11. A vacuum cleaner comprising a fan for a vacuum cleaner according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168692.5A CN109340187B (en) | 2018-10-08 | 2018-10-08 | Fixed impeller for dust collector, fan and dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168692.5A CN109340187B (en) | 2018-10-08 | 2018-10-08 | Fixed impeller for dust collector, fan and dust collector |
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| Publication Number | Publication Date |
|---|---|
| CN109340187A CN109340187A (en) | 2019-02-15 |
| CN109340187B true CN109340187B (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811168692.5A Active CN109340187B (en) | 2018-10-08 | 2018-10-08 | Fixed impeller for dust collector, fan and dust collector |
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| CN111852949B (en) * | 2019-04-28 | 2022-05-03 | 广东美的环境电器制造有限公司 | Air supply device and air supply equipment |
| KR102171454B1 (en) * | 2019-07-10 | 2020-10-29 | 엘지전자 주식회사 | Fan Motor and Manufacturing the Same |
| CN111407185A (en) * | 2020-01-21 | 2020-07-14 | 追创科技(苏州)有限公司 | Low-noise efficient motor and dust collector |
| CN114680706B (en) * | 2020-12-25 | 2023-01-24 | 广东美的白色家电技术创新中心有限公司 | Fan assembly and dust collector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0556895A1 (en) * | 1992-02-17 | 1993-08-25 | Koninklijke Philips Electronics N.V. | Device for displacing a gaseous or liquid medium, and vacuum cleaner comprising such a device |
| CN201292990Y (en) * | 2008-11-17 | 2009-08-19 | 金莱克电气股份有限公司 | Blower fan for suction cleaner motor |
| CN202288139U (en) * | 2011-09-28 | 2012-07-04 | 台山市江口电器制造有限公司 | Alternating-current series motor for dust collector |
| KR102171271B1 (en) * | 2013-12-24 | 2020-10-28 | 삼성전자주식회사 | Cleaner |
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