CN211648507U

CN211648507U - High-efficient dust catcher fan assembly and dust catcher thereof

Info

Publication number: CN211648507U
Application number: CN201922444622.4U
Authority: CN
Inventors: 周鹏; 沈昌; 任红亮; 周吕辉; 方瀚
Original assignee: Wuxi Convert Electrical Machinery Co ltd
Current assignee: Wuxi Convert Electrical Machinery Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-09
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a high-efficiency dust collector fan assembly and a dust collector thereof, which comprises a dust collector motor and a movable impeller, wherein the movable impeller is fixedly installed and connected with a rotating shaft of the dust collector motor through an air guide ring, the movable impeller is sleeved on the inner periphery of an impeller cover, the inner wall of an impeller cover shell is provided with a plurality of flow guiding ribs, and the flow guiding ribs integrally extend towards the inner side direction of the impeller cover shell along the inner wall of the impeller cover shell; the movable impeller mounting shell is provided with a plurality of blades which take the air inlet as the center and are distributed at intervals in a ring shape towards the periphery of the movable impeller mounting shell, the peripheral end face of at least 1 blade is provided with a first convex tooth and a second convex tooth which are connected with each other, and an anti-vortex groove is formed between the first convex tooth and the second convex tooth; the upper surface and/or the lower surface of at least 1 wind guide blade of the wind guide ring is provided with a splitter blade which is vertically distributed with the wind guide ring, the length of the splitter blade is less than that of the wind guide blade, and the splitter blade is close to one side of the wind guide outlet relative to the wind guide inlet; the utility model discloses work efficiency is high, and the running noise is low, and the installation is compact and the installation is convenient.

Description

High-efficient dust catcher fan assembly and dust catcher thereof

Technical Field

The utility model belongs to dust catcher fan field, concretely relates to high-efficient dust catcher fan assembly, the utility model also relates to the dust catcher that this high-efficient dust catcher fan assembly used.

Background

The fan of the dust collector is a core functional component of the dust collector, and the quality of the dust collector is directly determined by the performance of the fan of the dust collector. For those skilled in the art, the core performance for a vacuum cleaner fan is primarily to achieve higher operating efficiency and to reduce noise as much as possible. In terms of structure, the components of the cleaner fan mainly comprise a cleaner motor, an air guide ring, a movable impeller and an impeller cover, and the components also directly determine the performance of the cleaner fan on working efficiency and noise.

Accordingly, the applicant wishes to solve the above technical problems by focusing on the research and development of a vacuum cleaner fan assembly product having high efficiency of operation.

Disclosure of Invention

In view of this, the utility model aims at providing a high-efficient dust catcher fan assembly and dust catcher thereof, work efficiency is high, and the running noise is low, and the installation is compact and the installation is convenient.

The utility model adopts the technical scheme as follows:

a high-efficiency dust collector fan assembly comprises a dust collector motor and a movable impeller, wherein the movable impeller is fixedly installed and connected with a rotating shaft of the dust collector motor through an air guide ring, and the movable impeller is sleeved on the inner periphery of an impeller cover in a relatively rotating manner, the impeller cover comprises an impeller cover shell, the movable impeller is sleeved on the inner periphery of the impeller cover shell in a relatively rotating manner, a plurality of flow guide ribs are arranged on the inner wall of the impeller cover shell, the flow guide ribs integrally extend towards the inner side direction of the impeller cover shell along the inner wall of the impeller cover shell, and the flow guide ribs are distributed on the inner wall of the impeller cover shell at intervals in an annular manner to form a flow guide channel for guiding the outlet air flow of the movable impeller;

the movable impeller comprises a movable impeller mounting shell which is respectively provided with an air inlet and an air outlet, a plurality of blades which take the air inlet as the center and are distributed at intervals in a ring shape are arranged on the movable impeller mounting shell, the air outlet is formed by the peripheral distance between every two adjacent blades, the peripheral end surface of at least 1 blade is provided with a first convex tooth and a second convex tooth which are connected with each other, and an anti-vortex groove is formed between the first convex tooth and the second convex tooth;

the air guide ring comprises an air guide mounting ring which is respectively connected with the movable impeller and the dust collector motor, a plurality of air guide blades which are distributed in an annular shape are arranged at intervals towards the periphery of the air guide mounting ring by taking the air guide mounting ring as a center, the air guide blades close to one side of the movable impeller are mutually matched to form an air guide inlet which is communicated with the outlet of the movable impeller, and the air guide blades close to one side of the dust collector motor are mutually matched to form an air guide outlet which is communicated with the dust collector motor; at least 1 air guide vane's upper surface and/or lower surface are equipped with the reposition of redundant personnel blade rather than being vertical distribution, reposition of redundant personnel blade length is less than air guide vane length, just it is relative that air guide inlet is close to air guide outlet one side.

Preferably, the flow guiding ribs are correspondingly arranged around the outlet area of the movable impeller, the flow guiding ribs comprise flow guiding rib bottom edges positioned on the inner wall of the impeller cover shell, and the flow guiding rib bottom edges integrally extend towards the inner side direction of the impeller cover shell to form flow guiding rib reinforcing edges; the bottom edge of the flow guide rib comprises an arc-shaped flow guide edge.

Preferably, the bottom edge of the flow guide rib comprises a first arc-shaped flow guide edge and a second arc-shaped flow guide edge which are integrally connected, wherein the curvature radius of the first arc-shaped flow guide edge is larger than that of the second arc-shaped flow guide edge.

Preferably, the water conservancy diversion muscle base still includes the right angle of buckling that is located the tip, the right angle of buckling respectively with second arc water conservancy diversion limit with water conservancy diversion muscle reinforcing edge body coupling.

Preferably, the anti-vortex groove is V-shaped.

Preferably, the peripheral end face of each blade is provided with 3-8 convex teeth, and all adjacent convex teeth are connected with each other to form the anti-vortex groove.

Preferably, the length of the splitter blade accounts for 1/2-2/3 of the length of the wind guide blade; the included angle between the splitter blade and the wind guide blade is not more than 15 degrees.

Preferably, the upper surface and/or the lower surface of each wind guide blade is provided with a splitter blade which is vertically distributed with the wind guide blade, and each splitter blade is annularly distributed to the periphery of the wind guide blade by taking the wind guide outlet as a center.

Preferably, the thickness of the splitter blade ranges from 0.6 mm to 1 mm.

Preferably, the vacuum cleaner adopts a vacuum cleaner fan as a dust suction driving part, and the vacuum cleaner fan adopts the high-efficiency vacuum cleaner fan assembly.

The utility model discloses carry out innovation structural design to impeller casing, movable vane wheel and wind-guiding circle respectively simultaneously, mainly be:

firstly, creatively provide and set up the water conservancy diversion muscle of circumference form interval distribution at the inner wall of impeller casing, the water conservancy diversion muscle forms and is used for carrying out the water conservancy diversion passageway that effective water conservancy diversion was carried out to the air-out air current to the movable vane, can carry out water conservancy diversion in the twinkling of an eye to the air-out air current, and then avoids the air-out air current to directly strike the impeller casing inner wall, and then avoids directly striking a great deal of technical defect that the impeller casing inner wall caused because of the air current, these technical defect include:

A. large impact loss is generated, so that the overall efficiency of the fan is greatly reduced; meanwhile, the energy consumption is high, and especially for a handheld dust collector, the battery power consumption is too fast, and the user experience is poor;

B. the wall surface of the impeller cover absorbs vibration due to large impact and then is transmitted to a working environment through the impeller cover, so that sharp high-frequency noise is received by human ears;

C. too high loss can produce more heat, and the inefficiency leads to the tolerance of the inside circulation of dust catcher fan not enough simultaneously, causes the inside radiating environment variation of dust catcher fan, when the local calorific capacity of dust catcher fan is too big, easily arouses spare part life-span low, excessively generates heat and still probably arouses the potential safety hazard.

Second, because the movable impeller export air current of current dust catcher motor can form the wake vortex between its air outlet and impeller casing, lead to the loss great, this embodiment is equipped with interconnect's 2 at least dogteeth through the periphery terminal surface at the blade, and then form anti vortex recess between the dogtooth, the structure of anti vortex recess can effectively avoid taking place the air current circulation at the air outlet and assemble, and then improved the wake vortex problem powerfully, reduce the air current acting loss, finally effectively improved the work efficiency of dust catcher fan.

Thirdly, the upper surface and/or the lower surface of the air guide blade of the air guide ring are/is creatively provided with the splitter blades which are vertically distributed with the air guide blade, the splitter blades can split air flow in the operation process of a fan of the dust collector, high-speed air flow can be formed at the air guide outlet, and separation cavitation vortex formed at the air guide outlet is quickly dispersed, so that the problem that the flow channel of the air guide ring is blocked by the separation cavitation vortex is avoided; the splitter blade of the utility model can be used as a reinforcing rib piece of the wind guide blade at the same time, so as to ensure the strength of the splitter structure;

the utility model discloses a to the impeller casing of dust catcher fan, movable vane and wind-guiding circle carry out like last air current institutional advancement design, through the mutual linkage mating reaction between the three, show the work efficiency who has improved the dust catcher fan, reduce fan air current loss as far as possible, noise when reducing the air current operation as far as possible belongs to the dust catcher fan product that has very excellent performance, simultaneously the utility model provides a dust catcher fan installation is compact and install conveniently.

Drawings

FIG. 1 is a view showing an installation structure of a motor of a vacuum cleaner according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 3 is a schematic structural view of a lower wheel casing 10 according to an embodiment of the present invention;

FIG. 4 is a side elevational view of FIG. 3;

FIG. 5 is an enlarged view of the structure of FIG. 4 at A;

fig. 6 is a schematic structural view of the movable impeller 20 according to the embodiment of the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 6 at B;

fig. 8 is a schematic structural view of a lower wind guide ring 30 according to an embodiment of the present invention.

Detailed Description

The embodiment of the utility model discloses a high-efficient dust catcher fan assembly, including dust catcher motor and movable vane, movable vane passes through the guide ring and is connected with the rotation axis fixed mounting of dust catcher motor, and movable vane cover is established at the inner periphery of impeller cover with relatively rotating, wherein, the impeller cover includes the impeller cover casing, and movable vane cover is established at the inner periphery of impeller cover casing with relatively rotating, the inner wall of impeller cover casing is equipped with a plurality of water conservancy diversion muscle, the water conservancy diversion muscle is along the inner wall of impeller cover casing to its inboard direction integrative extension, each water conservancy diversion muscle is annular interval distribution on the inner wall of impeller cover casing, form the diversion channel that is used for carrying out the air-out air current water conservancy diversion to movable vane; the movable impeller comprises a movable impeller mounting shell which is respectively provided with an air inlet and an air outlet, a plurality of blades which take the air inlet as a center and are distributed at intervals in an annular shape are arranged on the movable impeller mounting shell, the periphery space between every two adjacent blades forms the air outlet, the peripheral end surface of at least 1 blade is provided with a first convex tooth and a second convex tooth which are connected with each other, and an anti-vortex groove is formed between the first convex tooth and the second convex tooth; the air guide ring comprises an air guide mounting ring which is respectively connected with the movable impeller and the dust collector motor, a plurality of air guide blades which are distributed in an annular shape are arranged at intervals towards the periphery of the air guide mounting ring by taking the air guide mounting ring as the center, the air guide blades close to one side of the movable impeller are mutually matched to form an air guide inlet which is communicated with the outlet of the movable impeller, and the air guide blades close to one side of the dust collector motor are mutually matched to form an air guide outlet which is communicated with the dust collector motor; the upper surface and/or the lower surface of at least 1 wind-guiding blade are equipped with the splitter blade that is vertical distribution rather than, and splitter blade length is less than wind-guiding blade length, and the relative wind-guiding entry of splitter blade is close to wind-guiding export one side.

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a high-efficiency vacuum cleaner blower assembly 1 includes a vacuum cleaner motor 40 and an impeller 20, the impeller 20 is fixedly mounted and connected to a rotating shaft 41 of the vacuum cleaner motor 40 through an air guiding ring 30, and the impeller 20 is relatively rotatably sleeved on an inner circumference of an impeller cover 10, preferably, in this embodiment, the impeller cover 10 is fixedly clamped with a motor housing 42 of the vacuum cleaner motor 40, so as to facilitate quick mounting;

referring further to fig. 3, 4 and 5, in the present embodiment, the impeller casing 10 includes an impeller casing 11, and the impeller 20 is relatively rotatably sleeved on the inner periphery of the impeller casing 11, the inner wall 11a of the impeller casing 11 is provided with a plurality of flow guiding ribs 12, the preferred number selected by the applicant is 8-20, and of course, the number of flow guiding ribs may be specifically selected according to the actual installation dimension specification of the impeller casing in actual implementation, and the present application does not limit the number specifically; each flow guiding rib 12 integrally extends towards the inner side direction along the inner wall 11a of the impeller casing 11, and each flow guiding rib 12 is uniformly distributed on the inner wall 11a of the impeller casing 11 at intervals in an annular shape to form a flow guiding channel for guiding the air outlet flow of the movable impeller 20; in other embodiments, the flow guiding ribs 12 may be circumferentially distributed on the inner wall 11a of the impeller casing 11 at non-uniform intervals;

preferably, in the present embodiment, the flow guiding ribs 12 are correspondingly disposed around the outlet area of the movable impeller 20, and the flow guiding ribs 12 include a flow guiding rib bottom edge 12a located on the inner wall 11a of the impeller casing 11, the flow guiding rib bottom edge 12a integrally extends towards the inner side direction thereof and forms a flow guiding rib reinforcing edge 12b, and the flow guiding rib reinforcing edge 12b adopts a bent arc shape, so as to improve the structural strength of the flow guiding ribs 12, further ensure the flow guiding effect on the air flow, and avoid generating noise;

preferably, in the present embodiment, the flow guiding rib bottom edge 12a includes a first arc-shaped flow guiding edge 12a-1 and a second arc-shaped flow guiding edge 12a-2 which are integrally connected, wherein the curvature radius of the first arc-shaped flow guiding edge 12a-1 is larger than that of the second arc-shaped flow guiding edge 12 a-2; the bottom edge 12a of the flow guide rib further comprises a bent right angle 12a-3 positioned at the end part, the bent right angle 12a-3 is respectively and integrally connected with the second arc-shaped flow guide edge 12a-2 and the flow guide rib reinforcing edge 12b, and the structural design of the bent right angle 12a-3 can not only facilitate quick downward reversing of air flow, but also improve the structural strength of the flow guide rib 12 at the end part per se and ensure a long-term flow guide effect;

as further shown in fig. 6 and 7, in the present embodiment, the movable impeller 20 includes a movable impeller mounting casing 23 having an air inlet 21 and an air outlet 22, respectively, and a plurality of blades 24 are disposed on the movable impeller mounting casing 23, and are annularly spaced from the air inlet 21 as a center toward the outer periphery of the movable impeller mounting casing, preferably, in the present embodiment, the number of the blades 24 is 4-10, and the number of the specific blades 24 may be specifically selected according to actual application requirements, and these selections are all conventional technical means of those skilled in the art; the peripheral space between every two adjacent blades 24 forms an air outlet 22, and the movable impeller mounting shell 23 is provided with an air guide ring 25 communicated with the air inlet 21;

wherein, the peripheral end face of at least 1 blade 24 is provided with a first convex tooth and a second convex tooth which are connected with each other, and an anti-vortex groove is formed between the first convex tooth and the second convex tooth; preferably, in the present embodiment, the peripheral end surface of each blade 24 is provided with 3-8 convex teeth 24a (fig. 3 shows 4 convex teeth), each adjacent convex teeth 24a are connected with each other to form an anti-vortex groove 24b, in other embodiments, the number of the convex teeth 24a can be selected according to the actual size specification of the blade 24, and the embodiment is not particularly limited thereto, and the changes of the embodiments can improve the problem of the wake vortex generated by the planar blade end surface in the prior art;

preferably, in the present embodiment, the anti-vortex groove 24b is in a V shape, and the V shape can significantly improve the problem of the circulation flow convergence of the air outlet 22, and of course, other anti-vortex groove 24b structures with special shapes may also be adopted; particularly preferably, in the present embodiment, the anti-vortex groove 24b has a notch width W24 in the range of 1 to 5mm and a groove depth D24 in the range of 3 to 6 mm;

as shown in fig. 8, in the present embodiment, the wind guiding ring 30 includes a wind guiding mounting ring 31 connected to the movable impeller 20 and the vacuum cleaner motor 40, a plurality of wind guiding blades 32 are arranged at intervals around the wind guiding mounting ring 31, the wind guiding blades 32a near the movable impeller 20 cooperate with each other to form a wind guiding inlet 33 for communicating with the outlet of the movable impeller 20, and the wind guiding blades 32b near the vacuum cleaner motor 40 cooperate with each other to form a wind guiding outlet 34 for communicating with the vacuum cleaner motor 40; the upper surface and/or the lower surface of at least 1 wind guide blade 32 is/are provided with splitter blades 35 which are vertically distributed with the wind guide blade 32, the length of the splitter blade 35 is less than that of the wind guide blade 32, and the splitter blade 35 is close to one side of the wind guide outlet 34 relative to the wind guide inlet 33; the present application does not suggest that the splitter blade 35 is disposed on the side close to the air guide inlet 33, which may result in a reduction in the area of the air guide inlet 33, and increase the resistance of the external air flow entering the air guide blade 32 along the air guide inlet 33; further preferably, in the present embodiment, each air guide vane 32 has a splitter vane 35 disposed on an upper surface thereof and vertically distributed, and each splitter vane 35 is annularly distributed around the air guide outlet 34 toward an outer periphery thereof; the length of each splitter blade 35 accounts for 1/2-2/3 of the length of the air guide blade 32;

of course, in other embodiments of the present application, the splitter blade 35 may be disposed on the lower surface of the wind guide blade 32, or the splitter blade 35 may be disposed on both the upper surface and the lower surface of each wind guide blade 32, and these structural changes may generally bring about similar technical effects as the present application, and the changes of these embodiments also belong to the protection scope of the present application.

Preferably, in order to improve the smoothness of airflow circulation of the air guiding ring 30, the included angle between the splitter blade 35 and the air guiding blade 32 is not greater than 15 °, and more preferably, in the present embodiment, the splitter blade 35 and the air guiding blade 32 are in a distribution state of an included angle of not greater than 5 °;

preferably, since the thickness of the splitter blade 35 is too thin, the structural strength cannot be ensured, and the too thick thickness of the splitter blade will cause a large pressure gradient to be generated on both sides of the splitter blade 35, and a secondary vortex is easily generated, through the airflow simulation calculation, in the embodiment, the thickness range of the splitter blade 35 is 0.6-1 mm;

preferably, in the present embodiment, the air guide mounting ring 31 is provided with an air guide insertion hole 31a, and the rotary shaft 41 is fixedly mounted and connected to the impeller 20 after relatively rotatably penetrating the air guide insertion hole 31 a; preferably, in order to facilitate convenient and compact installation of the vacuum cleaner fan assembly 1, the air guide ring 30 is installed inside the motor installation shell 42, the upper end surface of the air guide installation ring 31 is provided with a limiting groove 31b, and the movable impeller 20 is relatively rotatably limited and installed in the limiting groove 31 b.

The present embodiment further provides a vacuum cleaner, which uses a vacuum cleaner fan as a dust-collecting driving component, wherein the vacuum cleaner fan uses the high-efficiency vacuum cleaner fan assembly 1 described above in this embodiment.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high-efficiency dust collector fan assembly comprises a dust collector motor and a movable impeller, wherein the movable impeller is fixedly installed and connected with a rotating shaft of the dust collector motor through an air guide ring, and the movable impeller is sleeved on the inner periphery of an impeller cover in a relatively rotating manner,

the impeller cover comprises an impeller cover shell, the movable impeller is sleeved on the inner periphery of the impeller cover shell in a relatively rotatable manner, a plurality of flow guide ribs are arranged on the inner wall of the impeller cover shell, the flow guide ribs integrally extend towards the inner side direction of the impeller cover shell along the inner wall of the impeller cover shell, and the flow guide ribs are distributed on the inner wall of the impeller cover shell at intervals in an annular manner to form a flow guide channel for guiding the air outlet flow of the movable impeller;

2. The fan assembly of claim 1, wherein the flow guiding ribs are disposed around the outlet area of the impeller, and the flow guiding ribs include a bottom edge of the flow guiding rib on the inner wall of the impeller housing, and the bottom edge of the flow guiding rib integrally extends towards the inner side of the impeller housing to form a reinforcing edge of the flow guiding rib; the bottom edge of the flow guide rib comprises an arc-shaped flow guide edge.

3. The blower assembly according to claim 2, wherein the bottom edge of the air guide rib comprises a first curved air guide edge and a second curved air guide edge integrally connected to each other, wherein the first curved air guide edge has a radius of curvature greater than the radius of curvature of the second curved air guide edge.

4. The fan assembly of claim 3, wherein the bottom edge of the flow guide rib further comprises a bent right angle at an end thereof, and the bent right angle is integrally connected with the second arc-shaped flow guide edge and the flow guide rib reinforcing edge respectively.

5. The high efficiency cleaner fan assembly of claim 1, wherein the anti-vortex groove is V-shaped.

6. The blower assembly for a high efficiency cleaner of claim 1 wherein the peripheral end surface of each of the plurality of blades has 3 to 8 lobes, and wherein adjacent lobes are interconnected to form an anti-vortex groove.

7. The high efficiency cleaner fan assembly of claim 1 wherein the splitter blade length is between 1/2 and 2/3 of the length of the air guide blade; the included angle between the splitter blade and the wind guide blade is not more than 15 degrees.

8. The blower assembly for a high efficiency cleaner as claimed in claim 1, wherein the upper and/or lower surface of each of the plurality of air guide vanes is provided with a plurality of splitter vanes extending perpendicularly thereto, each splitter vane being annularly disposed about the air guide outlet toward the outer periphery thereof.

9. The high efficiency cleaner fan assembly of claim 1, wherein the splitter blade has a thickness in a range of 0.6-1 mm.

10. A vacuum cleaner using a cleaner fan as a suction driving part, wherein the cleaner fan employs a high efficiency cleaner fan assembly as claimed in any one of claims 1 to 9.